function getElementsByClassName(clsName, fromElement){
    var retVal = new Array();
    if (!fromElement)
    	fromElement=document;
    var elements = fromElement.getElementsByTagName("*");
    for(var i = 0;i < elements.length;i++){
        if(elements[i].className.indexOf(" ") >= 0){
            var classes = elements[i].className.split(" ");
            for(var j = 0;j < classes.length;j++){
                if(classes[j] == clsName)
                    retVal.push(elements[i]);
            }
        }
        else if(elements[i].className == clsName)
            retVal.push(elements[i]);
    }
    return retVal;
}

function starHover(note)
{
	var stars=getElementsByClassName('stars');
	for ( i=0 ; i<note ; ++i )
		stars[i].src=stars[i].src.replace('ocena.gif', 'ocenah.gif');
	document.getElementById('giveNote').innerHTML=note;
}

function starRestore()
{
	var stars=getElementsByClassName('stars');
	for ( i=0 ; i<stars.length ; ++i )
		stars[i].src=stars[i].src.replace('ocenah.gif', 'ocena.gif');
	document.getElementById('giveNote').innerHTML='-';
}