// **************************************************************************************************************************************************** //
// English: The following scripts are copyright protected Loebesiden.dk. It is not allowed to make any copies without approvement from the webmaster.   //
// Dansk: Følgende script er beskyttet af ophavsretsloven og må under ingen omstændigheder kopieres uden godkendelse fra webmasteren.                   //
// **************************************************************************************************************************************************** //


function dotReplace(number) {  
 	if (number != "") {
            	return number.replace (/\,/g, '.');
      	} else {
      		return 0;
      	}
} 


function bookmark(url, description, text) {
	netscape=text;
	if (navigator.appName=='Microsoft Internet Explorer') {
		window.external.AddFavorite(url, description);
	}
	else if (navigator.appName=='Netscape') {
		alert(netscape);
	}
}

var x,y;
document.onmousemove=getMousePos;
function getMousePos(e){
	if (navigator.appName == "Microsoft Internet Explorer") {
		x=event.x+document.body.scrollLeft;y=event.y+document.body.scrollTop;	
	} else {
		x=e.pageX;y=e.pageY;	
	}
}

function showconditions() {
	if(document.getElementById('conditionsbox').style.display=='block') {
		document.getElementById('conditionsbox').style.display='none';
	}
	else {
		document.getElementById('conditionsbox').style.top = y+10;
		document.getElementById('conditionsbox').style.left = x-400;
		document.getElementById('conditionsbox').style.display = 'block';
	}
}
function closeconditions() {
	document.getElementById('conditionsbox').style.display = 'none';
}
function checksignup() {
	var submitform = true;

	// check username
	if(!(/^[a-zA-Z\d]+$/.test(document.getElementById('username').value)) || document.getElementById('username').value.length<6) {
		alert('Brugernavnet er enten for kort eller forkert sammensæt. Brug kun bogstaver og/eller tal!');
		submitform = false;
	}

	// check password
	else if(!(/^[a-zA-Z\d]+$/.test(document.getElementById('pw1').value)) || document.getElementById('pw1').value.length<6) {
		alert('Adgangskoden er enten for kort eller forkert sammensæt. Brug kun bogstaver og/eller tal!');
		submitform = false;
	}

	// check confirmed password
	else if(document.getElementById('pw1').value != document.getElementById('pw2').value) {
		alert('Den bekræftede adgangskode er ikke korrekt!');
		submitform = false;
	}

	// check nickname
	else if(!(/^[a-zA-Z\d]+$/.test(document.getElementById('nickname').value)) || document.getElementById('nickname').value.length<6) {
		alert('Profilnavn er enten for kort eller forkert sammensæt. Brug kun bogstaver og/eller tal!');
		submitform = false;
	}

	// check email
	else if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.getElementById('email').value)) || document.getElementById('email').value.length<6){
		alert("Email adressen er ugyldig!")
		submitform = false;
	}

	// check conditions
	else if(!document.getElementById('conditions').checked) {
		alert("Du skal godkende betingelserne for at blive medlem!")
		submitform = false;	
	}

	if(submitform) {
		document.getElementById('form').submit();
	}
}
function forgot_email() {
	// check email
	if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.getElementById('email').value))){
		alert("Email adressen er ugyldig!");
	}
	else {
		document.getElementById('form').submit();
	}
}

//*** Calculations ***//

function isInt(id) {
	return (/^[0-9]+$/.test(document.getElementById(id).value));
}
function isNumber(id) {
	return (/^[-]?[0-9]+[\.]?[0-9]+$/.test(document.getElementById(id).value));
}
function isNumVal(val) {
	return (/^[-]?[0-9]+[\.]?[0-9]+$/.test(val));
}
function isSet(id) {
	return (document.getElementById(id).value!='');
}
function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}
function riegels(d1,d2,h,m,s) {
	var inputsec = parseInt(h*3600)+parseInt(m*60)+parseInt(s*1);
	var outputsec = Math.round(inputsec*Math.pow((d2/d1),1.06));
	var reshour = Math.floor(outputsec/3600);
	var resmin = Math.floor((outputsec-reshour*3600)/60);
	var ressec = Math.floor(outputsec-reshour*3600-resmin*60);
	var kmtime_min = Math.floor((1000*outputsec/d2)/60);
	var kmtime_sec = Math.floor((1000*outputsec/d2)-kmtime_min*60);

	if(reshour<10) {reshour='0'+reshour;}
	if(resmin<10) {resmin='0'+resmin;}
	if(ressec<10) {ressec='0'+ressec;}
	if(kmtime_min<10) {kmtime_min='0'+kmtime_min;}
	if(kmtime_sec<10) {kmtime_sec='0'+kmtime_sec;}
	if(reshour==0) {reshour='00';}
	if(resmin==0) {resmin='00';}
	if(ressec==0) {ressec='00';}
	if(kmtime_min==0) {kmtime_min='00';}
	if(kmtime_sec==0) {kmtime_sec='00';}

	return reshour+':'+resmin+':'+ressec+'</td><td>'+kmtime_min+':'+kmtime_sec;
}
function training(t,d,h,m,s,p1,p2) {
	var inputsec = parseInt(h*3600)+parseInt(m*60)+parseInt(s*1);
	var outputsec1 = Math.round(p1*inputsec*Math.pow((1000/d),1.06));
	var outputsec2 = Math.round(p2*inputsec*Math.pow((1000/d),1.06));

	var reshour1 = Math.floor(outputsec1/3600);
	var resmin1 = Math.floor((outputsec1-reshour1*3600)/60);
	var ressec1 = Math.floor(outputsec1-reshour1*3600-resmin1*60);

	var reshour2 = Math.floor(outputsec2/3600);
	var resmin2 = Math.floor((outputsec2-reshour2*3600)/60);
	var ressec2 = Math.floor(outputsec2-reshour2*3600-resmin2*60);

	if(reshour1<10) {reshour1='0'+reshour1;}
	if(resmin1<10) {resmin1='0'+resmin1;}
	if(ressec1<10) {ressec1='0'+ressec1;}
	if(reshour1==0) {reshour1='00';}
	if(resmin1==0) {resmin1='00';}
	if(ressec1==0) {ressec1='00';}

	if(reshour2<10) {reshour2='0'+reshour2;}
	if(resmin2<10) {resmin2='0'+resmin2;}
	if(ressec2<10) {ressec2='0'+ressec2;}
	if(reshour2==0) {reshour2='00';}
	if(resmin2==0) {resmin2='00';}
	if(ressec2==0) {ressec2='00';}

	return reshour1+':'+resmin1+':'+ressec1+'</td><td>'+reshour2+':'+resmin2+':'+ressec2;
}

function calc_end_time() {
	if(!isInt('dist')){
		alert('Distancen er sat ukorrekt. Indtast kun hele talværdier og uden bogstaver!');
	}
	else if(document.getElementById('dist').value<1000){ 
		alert('Distancen skal være større end 1000 m!');
	}
	else if((!isInt('hours') && isSet('hours')) || (!isInt('minutes') && isSet('minutes')) || (!isInt('seconds') && isSet('seconds'))) {
		alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
	}
	else if(!isSet('hours') && !isSet('minutes') && !isSet('seconds')) {
		alert('Husk at sætte tiden!');
	}
	else {
		var res = '';
		var calcdist = document.getElementById('dist').value;
		if(calcdist=='') {calcdist=0;}
		var calchour = document.getElementById('hours').value;
		if(calchour=='') {calchour=0;}
		var calcmin = document.getElementById('minutes').value;
		if(calcmin=='') {calcmin=0;}
		var calcsec = document.getElementById('seconds').value;
		if(calcsec=='') {calcsec=0;}

		// sluttider
		res+='<span style="border-top: 1px #000 solid; display: block; margin-bottom: 10px;" /><br />';
		res+='<h1>Potentielle konkurrencetider</h2>';
		res+='<table class="space" style="width: 250px;">';
		res+='<tr><td><b>Distance</b></td><td><b>Sluttid</b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td><b>Min/km</b></td></tr>';
		res+='<tr><td>1000m</td><td>'+riegels(calcdist,1000,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>1500m</td><td>'+riegels(calcdist,1500,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>3000m</td><td>'+riegels(calcdist,3000,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>5000m</td><td>'+riegels(calcdist,5000,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>8000m</td><td>'+riegels(calcdist,8000,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>10000m</td><td>'+riegels(calcdist,10000,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>20000m</td><td>'+riegels(calcdist,20000,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>½ marathon</td><td>'+riegels(calcdist,21097.5,calchour,calcmin,calcsec)+'</td></tr>';
		res+='<tr><td>Marathon</td><td>'+riegels(calcdist,42195,calchour,calcmin,calcsec)+'</td></tr>';
		res+='</table>';

		document.getElementById('results').innerHTML = res;
	}
}

function calc_speed() {
	if(isInt('d1') && (isSet('h1') || isSet('m1') || isSet('s1'))){
		if((!isInt('h1') && isSet('h1')) || (!isInt('m1') && isSet('m1')) || (!isInt('s1') && isSet('s1'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {	
			var d1 = document.getElementById('d1').value;
			var h1 = document.getElementById('h1').value;
			if(h1=='00') {h1=0;}
			if(h1=='') {h1=0;}
			var m1 = document.getElementById('m1').value;			
			if(m1=='00') {m1=0;}
			if(m1=='') {m1=0;}
			var s1 = document.getElementById('s1').value;
			if(s1=='00') {s1=0;}
			if(s1=='') {s1=0;}

			var time1 = parseInt(h1*3600)+parseInt(m1*60)+parseInt(s1*1);
			var output1 = Math.round(1000*time1/d1);
			var h_out = Math.floor(output1/3600);
			var m_out = Math.floor((output1-h_out*3600)/60);
			var s_out = Math.floor(output1-h_out*3600-m_out*60);			
			if(h_out<10) {h_out='0'+h_out;}
			if(m_out<10) {m_out='0'+m_out;}
			if(s_out<10) {s_out='0'+s_out;}
			if(h_out==0) {h_out='00';}
			if(m_out==0) {m_out='00';}
			if(s_out==0) {s_out='00';}
			document.getElementById('res1').innerHTML = h_out+':'+m_out+':'+s_out+' minuter/km';
		}
	} else {
		document.getElementById('res1').innerHTML = '';
	}
}
function calc_time() {
	if(isInt('d2') && (isSet('m2') || isSet('s2'))){
		if((!isInt('m2') && isSet('m2')) || (!isInt('s2') && isSet('s2'))) {
			alert('Hastigheden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {	
			var d2 = document.getElementById('d2').value;
			var m2 = document.getElementById('m2').value;			
			if(m2=='00') {m2=0;}
			if(m2=='') {m2=0;}
			var s2 = document.getElementById('s2').value;
			if(s2=='00') {s2=0;}
			if(s2=='') {s2=0;}

			var speed2 = parseInt(m2*60)+parseInt(s2*1);
			var output2 = Math.round(speed2*d2/1000);
			var h_out = Math.floor(output2/3600);
			var m_out = Math.floor((output2-h_out*3600)/60);
			var s_out = Math.floor(output2-h_out*3600-m_out*60);			
			if(h_out<10) {h_out='0'+h_out;}
			if(m_out<10) {m_out='0'+m_out;}
			if(s_out<10) {s_out='0'+s_out;}
			if(h_out==0) {h_out='00';}
			if(m_out==0) {m_out='00';}
			if(s_out==0) {s_out='00';}
			document.getElementById('res2').innerHTML = h_out+':'+m_out+':'+s_out;

		}
	} else {
		document.getElementById('res2').innerHTML = '';
	}
}
function calc_dist() {
	if((isSet('h3a') || isSet('m3a') || isSet('s3a')) && (isSet('m3b') || isSet('s3b'))){
		if((!isInt('h3a') && isSet('h3a')) || (!isInt('m3a') && isSet('m3a')) || (!isInt('s3a') && isSet('s3a'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		} else if((!isInt('m3b') && isSet('m3b')) || (!isInt('s3b') && isSet('s3b'))) {
			alert('Hastigheden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {	
			var h3a = document.getElementById('h3a').value;
			if(h3a=='00') {h3a=0;}
			if(h3a=='') {h3a=0;}
			var m3a = document.getElementById('m3a').value;			
			if(m3a=='00') {m3a=0;}
			if(m3a=='') {m3a=0;}
			var s3a = document.getElementById('s3a').value;
			if(s3a=='00') {s3a=0;}
			if(s3a=='') {s3a=0;}

			var m3b = document.getElementById('m3b').value;			
			if(m3b=='00') {m3b=0;}
			if(m3b=='') {m3b=0;}
			var s3b = document.getElementById('s3b').value;
			if(s3b=='00') {s3b=0;}
			if(s3b=='') {s3b=0;}

			var time3 = parseInt(h3a*3600)+parseInt(m3a*60)+parseInt(s3a*1);
			var speed3 = parseInt(m3b*60)+parseInt(s3b*1);
						
			var output3 = Math.round(1000*time3/speed3);
			document.getElementById('res3').innerHTML = output3+' m';

		}
	} else {
		document.getElementById('res3').innerHTML = '';
	}
}

function calc_split_next_time(n) {	
	if(document.getElementById('h'+(n+1)+'1')) {
	 	document.getElementById('h'+(n+1)+'1').value = document.getElementById('h'+n+'2').value;
	 	document.getElementById('m'+(n+1)+'1').value = document.getElementById('m'+n+'2').value;
	 	document.getElementById('s'+(n+1)+'1').value = document.getElementById('s'+n+'2').value;
	}
}
function calc_split_next_dist(n) {	
	if(document.getElementById('d'+(n+1)+'1')) {
		document.getElementById('d'+(n+1)+'1').value = document.getElementById('d'+n+'2').value;
	}
}

function calc_split(n) {	
	calc_split_next_time(n);
	calc_split_next_dist(n);
	if(isInt('d'+n+'1') && isInt('d'+n+'2') && (isSet('h'+n+'1') || isSet('m'+n+'1') || isSet('s'+n+'1')) && (isSet('h'+n+'2') || isSet('m'+n+'2') || isSet('s'+n+'2'))){
		if((!isInt('h'+n+'1') && isSet('h'+n+'1')) || (!isInt('m'+n+'1') && isSet('m'+n+'1')) || (!isInt('s'+n+'1') && isSet('s'+n+'1')) || (!isInt('h'+n+'2') && isSet('h'+n+'2')) || (!isInt('m'+n+'2') && isSet('m'+n+'2')) || (!isInt('s'+n+'2') && isSet('s'+n+'2'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {				
			var d11 = document.getElementById('d'+n+'1').value;
			var h11 = document.getElementById('h'+n+'1').value;
			if(h11=='00') {h11=0;}
			if(h11=='') {h11=0;}
			var m11 = document.getElementById('m'+n+'1').value;			
			if(m11=='00') {m11=0;}
			if(m11=='') {m11=0;}
			var s11 = document.getElementById('s'+n+'1').value;
			if(s11=='00') {s11=0;}
			if(s11=='') {s11=0;}

			var d12 = document.getElementById('d'+n+'2').value;
			var h12 = document.getElementById('h'+n+'2').value;
			if(h12=='00') {h12=0;}
			if(h12=='') {h12=0;}
			var m12 = document.getElementById('m'+n+'2').value;			
			if(m12=='00') {m12=0;}
			if(m12=='') {m12=0;}
			var s12 = document.getElementById('s'+n+'2').value;
			if(s12=='00') {s12=0;}
			if(s12=='') {s12=0;}

			var time1 = parseInt(h11*3600)+parseInt(m11*60)+parseInt(s11*1);
			var time2 = parseInt(h12*3600)+parseInt(m12*60)+parseInt(s12*1);
			var time = time2-time1;
			var dist = d12-d11;
			if(dist>0) {
				output1 = Math.round(1000*time/dist);			
				var m_out1 = Math.floor((output1)/60);
				var s_out1 = Math.round(output1-m_out1*60);			
				if(m_out1<10 && m_out1>0) {m_out1='0'+m_out1;}
				if(s_out1<10 && s_out1>0) {s_out1='0'+s_out1;}
				if(m_out1==0) {m_out1='00';}
				if(s_out1==0) {s_out1='00';}
				if(!(m_out1<0 || s_out1<0)) {
					document.getElementById('splitspeed'+n).innerHTML = m_out1+':'+s_out1+' min/km';
				}
				
				output2 = time;
				var h_out2 = Math.floor(output2/3600);
				var m_out2 = Math.floor((output2-h_out2*3600)/60);
				var s_out2 = Math.round(output2-h_out2*3600-m_out2*60);			
				if(h_out2<10 && h_out2>0) {h_out2='0'+h_out2;}
				if(m_out2<10 && m_out2>0) {m_out2='0'+m_out2;}
				if(s_out2<10 && s_out2>0) {s_out2='0'+s_out2;}
				if(h_out2==0) {h_out2='00';}
				if(m_out2==0) {m_out2='00';}
				if(s_out2==0) {s_out2='00';}
				if(!(h_out2<0 || m_out2<0 || s_out2<0)) {
					document.getElementById('splittime'+n).innerHTML = h_out2+':'+m_out2+':'+s_out2;
				}
			}
		}
	} else {
		document.getElementById('splittime'+n).innerHTML = '';
		document.getElementById('splitspeed'+n).innerHTML = '';
	}
}

var times = new Array();
var speeds = new Array();

function calc_improvement_function(n,dist){
	var d = document.getElementById('d'+dist).value;
	var h = document.getElementById('h'+n+'1').value;
	if(h=='00') {h=0;}
	if(h=='') {h=0;}
	var m = document.getElementById('m'+n+'1').value;
	if(m=='00') {m=0;}
	if(m=='') {m=0;}
	var s = document.getElementById('s'+n+'1').value;
	if(s=='00') {s=0;}
	if(s=='') {s=0;}
	var time = parseInt(h*3600)+parseInt(m*60)+parseInt(s*1);
	times[n] = time;
	var speed = Math.round(1000*time/d);
	speeds[n] = speed;

	var m_out = Math.floor((speed)/60);
	var s_out = Math.floor(speed-m_out*60);
	if(m_out<10 && m_out>0) {m_out='0'+m_out;}
	if(s_out<10 && s_out>0) {s_out='0'+s_out;}
	if(m_out==0) {m_out='00';}
	if(s_out==0) {s_out='00';}
	document.getElementById('speed'+n).innerHTML = m_out+':'+s_out+' min/km';
}

function calc_improvement() {
	var set1 = false;
	var set2 = false;
	var set3 = false;
	if(isInt('d1') && (isSet('h11') || isSet('m11') || isSet('s11'))){
		if((!isInt('h11') && isSet('h11')) || (!isInt('m11') && isSet('m11')) || (!isInt('s11') && isSet('s11'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {
			calc_improvement_function(1,1);
			set1=true;
		}
	} else {
		document.getElementById('speed1').innerHTML = '';
	}
	if(isInt('d1') && (isSet('h21') || isSet('m21') || isSet('s21'))){
		if((!isInt('h21') && isSet('h21')) || (!isInt('m21') && isSet('m21')) || (!isInt('s21') && isSet('s21'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {
			calc_improvement_function(2,1);
			set2=true;
		}
	} else {
		document.getElementById('speed2').innerHTML = '';
	}
	if(isInt('d2') && (isSet('h31') || isSet('m31') || isSet('s31'))){
		if((!isInt('h31') && isSet('h31')) || (!isInt('m31') && isSet('m31')) || (!isInt('s31') && isSet('s31'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {
			calc_improvement_function(3,2);
			set3=true;
		}
	} else {
		document.getElementById('speed3').innerHTML = '';
	}
	if(set1 && set2 && set3) {
		var dist_reduction = document.getElementById('d2').value/document.getElementById('d1').value;
		var improvement_time = times[2]/times[1];
		var improvement_speed = speeds[3]/speeds[1];
		document.getElementById('data1').innerHTML = (new Number(dist_reduction)).toFixed(2);
		document.getElementById('data2').innerHTML = (new Number(100*(1-improvement_speed))).toFixed(2)+'%';
		document.getElementById('data3').innerHTML = (new Number(100*(1-improvement_time))).toFixed(2)+'%';

		var new_time = improvement_time*times[3];
		var h_out = Math.floor(new_time/3600);
		var m_out = Math.floor((new_time-h_out*3600)/60);
		var s_out = Math.floor(new_time-h_out*3600-m_out*60);
		if(h_out<10) {h_out='0'+h_out;}
		if(m_out<10) {m_out='0'+m_out;}
		if(s_out<10) {s_out='0'+s_out;}
		if(h_out==0) {h_out='00';}
		if(m_out==0) {m_out='00';}
		if(s_out==0) {s_out='00';}
		document.getElementById('h41').value = h_out;
		document.getElementById('m41').value = m_out;
		document.getElementById('s41').value = s_out;

		var speed = Math.round(1000*new_time/document.getElementById('d2').value);
		var m_out = Math.floor((speed)/60);
		var s_out = Math.floor(speed-m_out*60);
		if(m_out<10 && m_out>0) {m_out='0'+m_out;}
		if(s_out<10 && s_out>0) {s_out='0'+s_out;}
		if(m_out==0) {m_out='00';}
		if(s_out==0) {s_out='00';}
		document.getElementById('speed4').innerHTML = m_out+':'+s_out+' min/km';
	} else {
		document.getElementById('h41').value = '';
		document.getElementById('m41').value = '';
		document.getElementById('s41').value = '';
		document.getElementById('speed4').innerHTML = '';
	}
}

// løbetid * (startvægt - vægttab * 0.8)/ startvægt;

function calc_weight() {	
	if(isSet('weight') && isSet('loose') && (isSet('hours') || isSet('minutes') || isSet('seconds'))){
		if((!isInt('hours') && isSet('hours')) || (!isInt('minutes') && isSet('minutes')) || (!isInt('seconds') && isSet('seconds'))) {
			alert('Tiden er sat forkert. Indtast kun hele talværdier og uden bogstaver!');
		}
		else {	
			var weight = dotReplace(document.getElementById('weight').value);
			document.getElementById('weight').value = weight;

			var loose = dotReplace(document.getElementById('loose').value);
			var loose = document.getElementById('loose').value;

			var h1 = document.getElementById('hours').value;
			if(h1=='00') {h1=0;}
			if(h1=='') {h1=0;}
			var m1 = document.getElementById('minutes').value;			
			if(m1=='00') {m1=0;}
			if(m1=='') {m1=0;}
			var s1 = document.getElementById('seconds').value;
			if(s1=='00') {s1=0;}
			if(s1=='') {s1=0;}

			var time1 = parseInt(h1*3600)+parseInt(m1*60)+parseInt(s1*1);
			var output1 = time1 * (weight - loose * 0.8)/ weight;

			var h_out = Math.floor(output1/3600);
			var m_out = Math.floor((output1-h_out*3600)/60);
			var s_out = Math.floor(output1-h_out*3600-m_out*60);			
			if(h_out<10) {h_out='0'+h_out;}
			if(m_out<10) {m_out='0'+m_out;}
			if(s_out<10) {s_out='0'+s_out;}
			if(h_out==0) {h_out='00';}
			if(m_out==0) {m_out='00';}
			if(s_out==0) {s_out='00';}
			document.getElementById('result').innerHTML = h_out+':'+m_out+':'+s_out;
		}
	} else {
		document.getElementById('result').innerHTML = '';
	}
}

function calc_bmi() {
	var weight = document.getElementById('weight').value;
	var height = document.getElementById('height').value;
	weight = weight.replace(',','.');
	if(isInt('height') && isSet('height') && isSet('weight')) {
		var bmi = roundNumber(10000 * weight / (height * height),2);
		document.getElementById('bmi').innerHTML = bmi;		
		if(bmi<16) {
			document.getElementById('condition').innerHTML = 'Meget undervægtig';		
		}
		else if(bmi<20) {
			document.getElementById('condition').innerHTML = 'Undervægtig';		
		}
		else if(bmi<25) {
			document.getElementById('condition').innerHTML = 'Normal vægt';		
		}
		else if(bmi<30) {
			document.getElementById('condition').innerHTML = 'Overvægtig';		
		}
		else if(bmi<40) {
			document.getElementById('condition').innerHTML = 'Meget overvægtig';		
		}
		else {
			document.getElementById('condition').innerHTML = 'Ekstrem overvægtig';		
		}
	}	
}

function calc_energy() {
	var weight = document.getElementById('weight').value;
	var dist = document.getElementById('dist').value;
	weight = weight.replace(',','.');
	dist = dist.replace(',','.');
	if(isSet('weight') && isSet('dist')) {
		var kcal = roundNumber(weight*dist/1000,2);
		var kj = roundNumber(4.2*weight*dist/1000,2);
		document.getElementById('energy').innerHTML = kcal+" kcal = "+kj+" KJ";		
	}	
}

function calc_fatpercent() {
	var weight = document.getElementById('weight').value;
	var fatpercent = document.getElementById('fatpercent').value;
	var loose = document.getElementById('loose').value;
	weight = weight.replace(',','.');
	fatpercent = fatpercent.replace(',','.');
	loose = loose.replace(',','.');

	if(isSet('weight') && isSet('fatpercent') && isSet('loose')) {
		var fat_old = fatpercent*weight/100;
		var fat_new = fatpercent*weight/100-loose;
		var weight_new = weight-loose;
		document.getElementById('new_fatpercent').innerHTML = roundNumber(100*fat_new/weight_new,2)+"%";	
	}
}

function calc_kondi(thisform) {
    	var distance = thisform.distance.value;
	var sex = thisform.sex.value;
    	var weight = dotReplace(thisform.weight.value);
    	thisform.weight.value = weight;
    	var Kondital = roundNumber((sex*0.05 + 1) * (distance - 505) / 45, 1);
    	var vo2 = roundNumber(Kondital * weight / 1000, 2);
    	thisform.Kondital.value=Kondital;
    	thisform.vo2.value=vo2;
    	return false;
}

function calc_puls_intensity(max,min,intensity) {
	return Math.round(min + (intensity * (max-min) / 100));
}

function calc_puls() {
	if(isInt('max') && isSet('max') && isInt('min') && isSet('min')) {
		var max = parseInt(document.getElementById('max').value*1);
		var min = parseInt(document.getElementById('min').value*1);
		if(isInt('intensity') && isSet('intensity')) {
			var intensity = parseInt(document.getElementById('intensity').value);		
			document.getElementById('puls').innerHTML = calc_puls_intensity(max,min,intensity);
		}
		document.getElementById('zone1').innerHTML = calc_puls_intensity(max,min,55)+'-'+calc_puls_intensity(max,min,65);
		document.getElementById('zone2').innerHTML = calc_puls_intensity(max,min,65)+'-'+calc_puls_intensity(max,min,75);
		document.getElementById('zone3').innerHTML = calc_puls_intensity(max,min,75)+'-'+calc_puls_intensity(max,min,85);
		document.getElementById('zone4').innerHTML = calc_puls_intensity(max,min,85)+'-'+calc_puls_intensity(max,min,95);
		document.getElementById('zone5').innerHTML = calc_puls_intensity(max,min,95)+'-'+calc_puls_intensity(max,min,100);

		document.getElementById('zone1a').innerHTML = calc_puls_intensity(max,min,50)+'-'+calc_puls_intensity(max,min,60);
		document.getElementById('zone2a').innerHTML = calc_puls_intensity(max,min,60)+'-'+calc_puls_intensity(max,min,70);
		document.getElementById('zone3a').innerHTML = calc_puls_intensity(max,min,70)+'-'+calc_puls_intensity(max,min,80);
		document.getElementById('zone4a').innerHTML = calc_puls_intensity(max,min,80)+'-'+calc_puls_intensity(max,min,90);
		document.getElementById('zone5a').innerHTML = calc_puls_intensity(max,min,90)+'-'+calc_puls_intensity(max,min,100);
	}
}
function calc_korrigeretpuls() {
	if(isSet('bpm_start') && isSet('bpm_avg') && isSet('t_start') && isSet('t') ) {
		var bpm_start = 1 * dotReplace(document.getElementById('bpm_start').value);
		var bpm_avg = 1 * dotReplace(document.getElementById('bpm_avg').value);
		var t_start = 1 * dotReplace(document.getElementById('t_start').value);
		var t = 1 * dotReplace(document.getElementById('t').value);
		document.getElementById('puls').innerHTML = roundNumber(((bpm_avg*t + (bpm_avg-bpm_start)*1/2)) / t,1);
	} else {
		document.getElementById('puls').innerHTML = '';
		alert("Udfyld venligst alle felterne.");
	}

}
function calc_kmt() {
	if(isSet('kmt')) {
		var kmt = document.getElementById('kmt').value = dotReplace(document.getElementById('kmt').value);
		if(isNumber('kmt')) {
			var min = 60*1/kmt;
			var min_out = Math.floor(min);
			var sec_out = Math.round((min - Math.floor(min))*60);
			if(sec_out<10) {sec_out='0'+sec_out;}

			document.getElementById('min').value = min_out;
			document.getElementById('sec').value = sec_out;
		}
		else {
			document.getElementById('min').value = '';
			document.getElementById('sec').value = '';
		}
	} else {
		document.getElementById('min').value = '';
		document.getElementById('sec').value = '';
	}
}
function calc_minkm() {
	if(isInt('min') && isInt('sec') && (isSet('min') || isSet('sec')) && (document.getElementById('min').value>0 || document.getElementById('sec').value>0)) {
		document.getElementById('kmt').value = roundNumber(60/(document.getElementById('min').value*1+(document.getElementById('sec').value/60)),1);
	} else {
		document.getElementById('kmt').value = '';
	}
}