window.onload = function(){
	//css rollover preloader
	image1 = new Image();
	image1.src = "images/arrow_orange.gif";
	image2 = new Image();
	image2.src = "images/arrow_orangeUl.gif";
	image3 = new Image();
	image3.src = "images/arrow_smBlue.gif";
	image4 = new Image();
	image4.src = "images/icon_print_blue.gif";
	
	//====rollover inits
		//	standard rollovers
	rOvers = getElementsByClass('ro');
	for(i=0;i<rOvers.length;i++){
		addEvent(rOvers[i],'mouseover',rollOver);
		addEvent(rOvers[i],'mouseout',rollOut);
	}
		//	special rollover case
	if(document.getElementById('cs-title')){
		myTitle = document.getElementById('cs-title');
		addEvent(myTitle,'mouseover',specialOver);
		addEvent(myTitle,'mouseout',specialOut);
	}
	//====navigation inits
		//get id catalog-list
	var cList = document.getElementById("catalog-list");
		//attach event to the li's under catalog-list
	children = cList.childNodes;
	for(i=0;i<children.length;i++){
		if(children[i].nodeType == "1"){
			addEvent(children[i].firstChild,'click',showNavigation);
		}
	}
}

/*
getElementsByClass
author: dustin diaz
link: http://www.dustindiaz.com/getelementsbyclass/
*/
function getElementsByClass(searchClass) {
	var classElements = new Array();
	var node = document;
	var 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;
}

/*
attachEvent
author: John Resig
link:http://ejohn.org/projects/flexible-javascript-events/
*/
function addEvent( obj, type, fn ) {
	if(obj.attachEvent){obj['e'+type+fn] = fn;
		obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
		obj.attachEvent( 'on'+type, obj[type+fn] );
	}
	else obj.addEventListener( type, fn, false );
}