var ie = (document.all) ? true : false;
var ns = (document.layers) ? true : false;
var ns6 = (!document.all && document.getElementById) ? true : false;

function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()')
		eval(imgObj+'.src = "'+imgSrc+'"')
	}
}

preload('ql_1_on','images/home_ql_1_on.gif')
preload('ql_1_off','images/home_ql_1_off.gif')
preload('ql_2_on','images/home_ql_2_on.gif')
preload('ql_2_off','images/home_ql_2_off.gif')
preload('ql_3_on','images/home_ql_3_on.gif')
preload('ql_3_off','images/home_ql_3_off.gif')
preload('ql_4_on','images/home_ql_4_on.gif')
preload('ql_4_off','images/home_ql_4_off.gif')


function chgImg(imgDiv,imgField,newImg) {
	if (ns) {eval('document.'+imgDiv+'.document.images[imgField].src = '+newImg+'.src')}
	if (ie) {document[imgField].src = eval(newImg+'.src')}
	if (ns6) {document.images[imgField].src = eval(newImg+'.src');}
}




function IEHoverPseudo() {

  var ulNodes = getElementsByClass("nice-menu");

  var j = 0;
  var liNodes = null;

  for(var i = 0; i < ulNodes.length; i++) { 
    liNodes = ulNodes[i].getElementsByTagName("li");
    for(j = 0; j < liNodes.length; j++) {
      if(liNodes[j].className == "menuparent") {
        liNodes[j].onmouseover=function() { this.className += " over"; }
        liNodes[j].onmouseout=function() { this.className = "menuparent"; }
      }
    }
  }
}


function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

window.onload = IEHoverPseudo;