function getRefToDiv(divID,oDoc) {
  if( !oDoc ) { oDoc = document; }
  if( document.layers ) {
      if( oDoc.layers[divID] ) { return oDoc.layers[divID]; } else {
          //repeatedly run through all child layers
          for( var x = 0, y; !y && x < oDoc.layers.length; x++ ) {
              //on success, return that layer, else return nothing
              y = getRefToDiv(divID,oDoc.layers[x].document); }
          return y; } }
  if( document.getElementById ) {
      return document.getElementById(divID); }
  if( document.all ) {
      return document.all[divID]; }
  return false;
}

function MM_validateForm() { //v4.0
	  if (document.getElementById){
	    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
	    for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=document.getElementById(args[i]);
	      if (val) { nm=val.name; if ((val=val.value)!="") {
	        if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
	          if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
	        } else if (test!='R') { num = parseFloat(val);
	          if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
	          if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
	            min=test.substring(8,p); max=test.substring(p+1);
	            if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
	      } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
	    } if (errors) alert('The following error(s) occurred:\n'+errors);
	    document.MM_returnValue = (errors == '');
	} }


function calculateBmi() {
	gew=document.getElementById("kg").value.replace(",",".");
	gro=document.getElementById("cm").value.replace(",",".");
	alter=document.getElementById("jahre").value;
	faktor=document.getElementById("aktiv").value;
	sex=0;
	if(document.getElementsByName("geschlecht")[0].checked) sex=0;
	else if(document.getElementsByName("geschlecht")[1].checked) sex=1;
	if (sex) 
		erg=eval(655+(9.6*gew)+(1.8*gro)-(4.7*alter));     //weiblich
	else
		erg=eval(66+(13.7*gew)+(5*gro)-(6.8*alter));       // m&auml;nnlich
	erg=Math.round(erg);
	ergj=Math.round(erg*4.1876);
	gerg=Math.round(erg*faktor);
	gergj=Math.round(ergj*faktor);
	
	erg+="";
    ergj+="";
    gerg+="";
    gergj+="";
	
    erg=erg.replace(".",",");
	ergj=ergj.replace(".",",");
	gerg=gerg.replace(".",",");
	gergj=gergj.replace(".",",");
	
	document.getElementById("gukcal").value=erg;
	document.getElementById("gukj").value=ergj;	
	document.getElementById("gekcal").value=gerg;
	document.getElementById("gekj").value=gergj;
 
}


function calculateWindchil () {
	
	
	T = document.getElementById("temp").value;
	v = document.getElementById("wind").value;

	vw = Math.pow(v, 0.16);
	//sqrt = (vw*vw);
	//alert(33+(0,478+0,237*(sqrt)-0,0124*vw)*(T-33));
	value = (13.12+0.6214*T-11.34*vw+0.3965*T*vw);
	endvalue = (value.toFixed(1));
//	alert(33+(0,478+0,237*(sqrt)-0,0124*vw)(T-33)); 
	
	myReference = getRefToDiv('showResult');
	if(myReference) 
	{
		if( myReference ) { myReference = myReference; }
		myReference.innerHTML = endvalue;
	}
	
}