// JavaScript Document
function checklogin(obj_form) {
	if(obj_form.Email.value == "") {
		alert("请输入邮箱地址！");
		obj_form.Email.focus();
		return false;
	}
	if(obj_form.Password.value == "") {
		alert("请输入密码！");
		obj_form.Password.focus();
		return false;
	}
	return true;
}