function getCheckedValue(radioObj) {	if(!radioObj)return "";	var radioLength = radioObj.length;	if(radioLength == undefined)			if(radioObj.checked)			return radioObj.value;			else			return "";			for(var i = 0; i < radioLength; i++){				if(radioObj[i].checked) {				return radioObj[i].value;}			}	return "";}function kalkulator(){	var a = document.formkalkulator.iznos.value;	var b = getCheckedValue(document.forms["formkalkulator"].elements['ko']);			var c = getCheckedValue(document.forms["formkalkulator"].elements['sta']);			otvori=window.open('kalkulator.php?iznos='+a+'&ko='+b+'&sta='+c,'kalkulator','width=440, height=200, menubar=no, resizable=no');	otvori.focus();}function k(){};