// JavaScript Document


function sethomepage(obj,url)
{
	obj.style.behavior='url(#default#homepage)';
	obj.setHomePage(url);
}

function addfav(url,title)
{
	window.external.AddFavorite(url,title);
}


function checkEmpty(objName,errorMsg)
{
	if($("#"+objName).val()=="")
	{
		return errorMsg+"\n";
	}
	else
	{
		return "";
	}
}


function checkEmail(email)
{
	var pattern=/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
	var flag=pattern.test(email);
	if(!flag){
		return "您填写的email格式不正确!\n";
	}else{
		return "";
	}
}

function checkFeedBack()
{
	var errorMsg="您填写的信息有如下错误:\n";
	errorMsg+=checkEmpty("title","请填写信息标题");
	errorMsg+=checkEmpty("content","请填写反馈信息");
	errorMsg+=checkEmpty("username","请填写您的称呼");
	errorMsg+=checkEmail($("#email").val());
	if(errorMsg!="您填写的信息有如下错误:\n"){
		alert(errorMsg);
		return false;
	}else{
		return true;
	}
}