function mouseover(oElem) {
		var btn = document.getElementById(oElem);
		
		switch (oElem){
		 case 'search': btn.src = 'images/searchactive.gif'; break;
		 case 'login': btn.src = 'images/login.gif'; break;
		}
		
	}
	
	function mouseout(oElem) {
		var btn = document.getElementById(oElem);
		
		switch (oElem){
		 case 'search': btn.src = 'images/searchun.gif'; break;
		 case 'login': btn.src = 'images/loginactive.gif'; break;
		}
		
	}