var ciffer = /^\d*$/; 
function tvingCifre(feltObj){

	if (ciffer.test(feltObj.value)) {
		// alt er ok
	} else {
		var til = "";
		var fra = feltObj.value;
		for (var i=0; fra.length>i; i++ ) 
			if ( ciffer.test( fra.charAt(i) ) )
				til += fra.charAt(i);
		feltObj.value = til;
	}
}

function validateEmail(email){
	if (email.length == 0){
		return false;
	}
	found = false;
	for (i=0; i < email.length; i=i+1) {
		if (email.charAt(i) == "@") {
			var num = i;
			found = true;
		}
	} //slut for
	if (found == false) {
	  return false;
	} else {
		//@fundet på plads num.
		num++;
		komma1found = false;
		for (num; num < email.length; num++){
			if(email.charAt(num) == "."){
				komma1found = true;
				var num2 = num;
			}
		}
		if (komma1found == false){
			return false;
		} else {
			//tester for tegn efter komma.
			var t = email.length -3;
			if (num2 > t){
				return false;
			}
		}
	}
	return true;
}//end function

	function RandomNum(nr) {
	return parseInt((Math.random() * nr) + 1);
}

function popUpWin(popupPage,pWidth, pHeight) {	
	window.open(popupPage,"PopUp"+RandomNum(10),"width="+pWidth+",height="+pHeight+",left=20,top=20,toolbar=no,location=no,directories=no,status=no,scrollbars=yes");
}

function popUpProfil(profilId){
	popUpWin("profil_popup.php?profilId="+profilId,600, 490);
}

function popUpProfilFane(profilId,showFane){

	if (showFane == 'post'){
		popUpWin("profil_popup.php?profilId="+profilId+"&show=post",600, 490);
	} else {
		popUpWin("profil_popup.php?profilId="+profilId+"&fane="+showFane,600, 490);
	}
}

function popUpProfilFaneItem(profilId,showFane,id){
	popUpWin("profil_popup.php?profilId="+profilId+"&fane="+showFane+"&profilDataId="+id,600, 490);
}

function popUpGifteknivFane(gpId){
	popUpWin("giftekniv.php?show=popup&gpId="+gpId,600, 490);
}


function popupHelp(helpId){
	var url = "help.php?helpId="+helpId;
	window.open(url,"PopUpHelp"+helpId,"width=20,height=20,left=20,top=20,toolbar=no,location=no,directories=no,status=no,scrollbars=yes");
}