function checklogin()
	{
		if(loginform.username.value == "")
		{
			alert("error:username .");
			loginform.username.focus();
			return false;
		}
		if(loginform.password.value == "")
		{
			alert("error:password .");
			loginform.password.focus();
			return false;
		}
		if(loginform.getcode.value == "")
		{
			alert("error:code .");
			loginform.getcode.focus();
			return false;
		}
		return true;
	}
	function changerand(){   
     pic=document.getElementById('randimg');
     pic.src="./loco/code.php?"+Math.random();   
  
    }
	var url=window.location;
    if(window!=parent)
    parent.navigate(url);
function loading() {
window.location.reload();
}
function reloadit() { 
setTimeout("loading()",500); //ΊΑΓλ 
}