function chengdushow()
		{
		document.getElementById("chengdu"). style.visibility="visible";		}

        function chengduhidden ()
		{
		document.getElementById("chengdu"). style.visibility="hidden";	
		}
				function tstshow()
		{
		document.getElementById("tst"). style.visibility="visible";		}

        function tsthidden ()
		{
		document.getElementById("tst"). style.visibility="hidden";	
		}
		function email()
{
var x=document.getElementById("name").value;
var y=document.getElementById("pwd").value;
window.open("http://mail.ztwx.com/webmail/emcontroller?username="+x+"&password="+y+"&todo=Login&Submit3.x=20&Submit3.y=11","_blank");
}

function press()
{
if(event.keyCode==13) document.getElementById('bt').click();
}
function position()
	{
	 document.getElementById('div1').style.top="-25px";
	 document.getElementById('div1').style.left="0px";
	}