function sf_toggleDraw(ele_id) {
	
	if (!$(ele_id).isDown) {
		Effect.BlindDown(ele_id);
		$(ele_id).isDown = true;
	}
	else {
		Effect.BlindUp(ele_id);
		$(ele_id).isDown = false;
	}
}

function sf_linkMenuDown() {

	if (Prototype.Browser.IE6 = Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) == 6) {

		var menu_group_arr = $$(".menu_down");
		
		if (menu_group_arr.length > 0) {
						
			for (i = 0; i < menu_group_arr.length; i++) {
			
				//var menu_arr = menu_group_arr[i].select("li");
				var menu_arr = menu_group_arr[i].immediateDescendants();
								
				for (i = 0; i < menu_arr.length; i++) {
					menu_arr[i].onmouseover = function() {
						this.addClassName("smactive");
					}
					menu_arr[i].onmouseout = function() {
						this.removeClassName("smactive");
					}
				}
			}
		}
	}
}