function AsponJedenOnOkremMna(obj)
{
	var vr = document.getElementsByName("velkost_ramu");
	
	for( var ii = 0; ii < vr.length; ii++ )
		if( vr[ii].src.indexOf("on.gif") != -1 && vr[ii] !== obj )
			return true;
	
	return false;
}
function OnOff(obj)
{
	if( obj.src.indexOf("on.gif") != -1 ){
		if( AsponJedenOnOkremMna(obj) )
			obj.setAttribute("src", "../design/images/off.gif");
	}
	else
		obj.setAttribute("src", "../design/images/on.gif");
}
function PodlaVelkosti(linka)
{
	var velkosti = "";
	var oddel = "";
	var vr = document.getElementsByName("velkost_ramu");
	
	for( var ii = 0; ii < vr.length; ii++ )
		if( vr[ii].src.indexOf("on.gif") != -1 ){
			velkosti += oddel + vr[ii].id;
			oddel = "|";
		}
		
	document.location = linka+"&vl="+velkosti;
}