/*	Expanding Menus for Indexhibit
 *		uses jquery
 *
 *	Created by Ross Cairns  Mar 2008
*/


function expandingMenu(num) {
	var speed = 200;

	var items = $("#menu ul").eq(num).children().filter(function (index) { return index > 0; });
    
	items.hide();
			
	/* hide items if not active */
	if (items.is(".active") == true) {
	     items.show();
		 items.addClass("dummy_active") ;
	}
	
	var item_title = $("#menu ul").eq(num).children(":first");

	/* add click functions + pointer to title */
	item_title.css({cursor: "pointer"}).click(
		function () {
			if (items.is(".dummy_active") == false) {
				 items.show(speed);
				 items.addClass("dummy_active") ;
			}
			else if (items.is(".dummy_active") == true) {
				 items.removeClass("dummy_active") ;
        		 items.hide(speed);
           }
			toHideSideMenu(num);
			return false ;
		}
	)
}

//This function is used to hide the other sub-menues and show only current sub-menues.
function toHideSideMenu(current_menu)
{
		for(var num = 0; num <=5; num++)
		{
			if (num!=current_menu)
			{
				var speed = 200;
				var items = $("#menu ul").eq(num).children().filter(function (num) { return num > 0; });
				items.hide();
				items.removeClass("dummy_active") ;
			}
		}
}