function signUp(){
	var vsUserName = GetE("user_name");
	if(vsUserName.value == ""){
		alert("姓名不能为空");
		vsUserName.focus();
		return false;
	}
	
	var vsUserTel = GetE("user_tel");	
	if(vsUserName.value == ""){
		alert("电话不能为空");
		vsUserTel.focus();
		return false;
	}
	
	var vsUserMobile = GetE("user_mobile");
	if(vsUserMobile.value == ""){
		alert("手机不能为空");
		vsUserMobile.focus();
		return false;
	}
	
	var vsSignCourse = GetE("sign_course");
	if(vsSignCourse.value == ""){
		alert("报名课程不能为空");
		vsSignCourse.focus();
		return false;
	}
	
	return true;
}