// JavaScript Document
function changItem(num){
	var url='';	
	switch(num){
		case '1':url="info.php?pid=59"; break;
		case '2':url="./shiye/"; break;
		case '3':url="./yanjiuyuan/"; break;
		case '4':url="http://www.gwm-engine.com/"; break;
		case '5':url="info.php?pid=58"; break;
		}
	location.href=url;
	}