var o;
o=1;
function chgimg(obj,nIndex)
{
if(nIndex != o)
{
obj.className="zsover";
var z = "t" + o;
document.getElementById(z).className="zsout";
o = nIndex;
if(nIndex == 1){
document.getElementById("img1").src="http://122.224.96.31/img/000001.png";
}
if(nIndex == 2){
document.getElementById("img1").src="http://122.224.96.31/img/399001.png";
}
if(nIndex == 3){
document.getElementById("img1").src="http://122.224.96.31/img/000003.png";
}
if(nIndex == 4){
document.getElementById("img1").src="http://122.224.96.31/img/399003.png";
}
if(nIndex == 5){
document.getElementById("img1").src="http://122.224.96.31/img/000300.png";
}
}
}

function checkLoginForm()
{
	var LoginForm=document.getElementById("loginForm");
	if (LoginForm.username.value==""||LoginForm.username.value.length<2)
	{	alert("请填写会员帐户，且不能小于2个文字！");
		LoginForm.username.focus();
		return false;
	}
	if (LoginForm.password.value==""||LoginForm.password.value.length<4)
	{	alert("请填写会员密码，且不能小于4个字节！");
		LoginForm.password.focus();
		return false;
	}
	return true;
}
function fontZoom(size)
{
   document.getElementById('con').style.fontSize=size+'px';
}