//验证用户名密码是否为空
function submit1()
{
	
	if(document.getElementById("username").value==null||document.getElementById("username").value==""){
		alert("请输入用户名");
		return false;
	}else if(document.getElementById("password").value==null||document.getElementById("password").value=="")
	{
		alert("请输入密码");
		return false;
	}else if(document.getElementById("code").value==null||document.getElementById("code").value=="")
	{
		alert("请输入验证码");
		return false;
	}else if(document.getElementsByTagName("input"))
	{
		var  r=document.getElementsByTagName("input");
		for(i=0;i<r.length;i++){
				if(r.type="radio"&&r[i].checked)
				{
						document.LoginForm.action="login.php?type=code&&stype="+r[i].value;
				}
			}
		
	}
	
}
function submit2(){
		document.LoginForm.action="register.php";
	}