// suckerfish dropdown
// source: http://www.htmldog.com/articles/suckerfish/dropdowns/

sfHover = function() {
	if(!document.getElementById('Navmain')) return false;
	var sfEls = document.getElementById("Navmain").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		if(sfEls[i].getElementsByTagName('ul').length==1){
			sfEls[i].onmouseover=function(){
				this.className+=" sfhover";
			}

			sfEls[i].onmouseout=function(){
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
		
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function menuSectHeaders(){
	if(!document.getElementById) return;
	if(!document.getElementById('Navmain')) return;
	var nav=document.getElementById('Navmain');
	var navLink=nav.getElementsByTagName('a');
	for(var i=0;i<navLink.length;i++){
		if(navLink[i].parentNode.getElementsByTagName('ul')[0]){
			navLink[i].className='nolink';
			navLink[i].onclick=function(){
				return false;
			}
		}
	}
}
addLoadEvent(menuSectHeaders)
//tool
function addLoadEvent(func){
	var oldonload = window.onload;
	if( typeof window.onload != 'function'){
		window.onload = func;
	}
	else{
		window.onload = function(){
			oldonload();
			func()
		}
	}
}