function postRequest(strURL)
{
	var xmlHttp;
	if(window.XMLHttpRequest){ // For Mozilla, Safari, ...
		var xmlHttp = new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{ // For Internet Explorer
		var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	}
	strURL=encodeURI(strURL);
	xmlHttp.open('POST', strURL, true);
	xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xmlHttp.onreadystatechange = function()
	{
		if (xmlHttp.readyState == 4)
		{
			updatepage(xmlHttp.responseText);
		}
	}
	xmlHttp.send(strURL);
}
function updatepage(str)
{
	if(str=='1')
	{
		alert("已经向你的邮箱发送了新密码，请注意查收！");		
	}
	else if(str=='2')
	{
		alert("邮件发送失败！");		
	}
	else
	{
		alert("您输入的用户名或邮箱错误！");		
	}
}
function call_login()
{
	var username = window.document.Login.username.value;
	var email = window.document.Login.email.value;
	if(username=="")
	{
		alert("用户名不能为空！");
		return false;
	}
	if(email=="")
	{
		alert("邮箱不能为空！")
		return false;
	}
	else if(email.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) == -1)
	{
		alert("邮箱格式不正确！");
		return false;
	}
	var url = "/user/retake_link.php?UserName=" + username + "&Email=" +email ;
	postRequest(url);
}