String.prototype.Trim = function(){
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

	function funSubmit(){
		if(isValid()) document.getElementById("btnSubmit").click();
		else{}
	}
	function isValid(){
		if(document.getElementById("userName").value.Trim()==""){alert("请填写您的姓名!");document.getElementById("userName").focus();return false;}
		if(document.getElementById("tel").value.Trim()==""){alert("请填写您的联系电话!");document.getElementById("tel").focus();return false;}
		return true;
	}