/*	Expanding Menus for Indexhibit
 *		uses jquery
 *
 *	Created by Ross Cairns  Mar 2008
*/
function scriptInit() {
if (!document.getElementById) {
	return;
	}
}
function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListener) {
	elm.addEventListener(evType, fn, useCapture);
	return true;
	} else if (elm.attachEvent) {
	var r = elm.attachEvent('on' + evType, fn);
	return r;
	} else {
	elm['on' + evType] = fn;
	}
}


function expandingMenu(num) {
		var a = document.getElementsByTagName("a");
	if (window.location.href.substr(location.href.length - 1, 1) == '/') {
		var loc = window.location.href + 'index.html'; 
	}
	else {
		var loc = window.location.href;
	}
	var speed = 500;
	var item_title = $("#menu ul").eq(num).children(":first");
	var items = $("#menu ul").eq(num).children().filter(function (index) { return index > 0; });
	


		for(var i=0; i < a.length; i++) {
		if (a[i].href == loc) {
			a[i].setAttribute("class", "active");
			a[i].setAttribute("className", "active"); 
		}
	
	}
	/* hide items if not active  */
if (items.is(".active") == false) {
items.hide();
}	


	/* add click functions + pointer to title */
	
 item_title.css({cursor:"pointer"}).hover(  
 function () {  
 items.slideToggle(speed);  
 })  

}