var myrules = {
				
		'dl.lb_SearchBox dt' : function(element){
			element.onmousedown = function(){
				if (document.getElementById(this.id + "_dd").className == "hidden")	{
					document.getElementById(this.id + "_dd").className = "";
				}	else	{
					document.getElementById(this.id + "_dd").className = "hidden";
				}
			}
			
		}


	
	
	};
	
	Behaviour.register(myrules);