function GetDataString(address,controlName)
{ 
	var xmlHttp
	var url=address 
	xmlHttp=GetXmlHttpObject()
	xmlHttp.onreadystatechange = function()
	{
		if (xmlHttp.readyState==4 || xmlHttp.readyState=='complete')
		{ 
			$(document.getElementById(controlName)).html(xmlHttp.responseText);
         } 
	} 

	xmlHttp.open("POST", url , true)
	xmlHttp.send('')
} 
function GetXmlHttpObject()
{ 
	var xmlHttp;
	if(window.XMLHttpRequest)
	{
		xmlHttp = new XMLHttpRequest();
		return xmlHttp;
	}
	try
	{
		xmlHttp = new ActiveXObject('MSXML2.XMLHTTP.4.0');
		return xmlHttp;
	}
	catch(e)
	{
		try
		{
			xmlHttp = new ActiveXObject('MSXML2.XMLHTTP.3.0');
			return xmlHttp;
		}
		catch(e)
		{
			try
			{
				xmlHttp = new ActiveXObject('MSXML2.XMLHTTP.2.6');
				return xmlHttp;
			}
			catch(e)
			{
				try
				{
					xmlHttp = new ActiveXObject('MSXML2.XMLHTTP');
					return xmlHttp;
				}
				catch(e)
				{
					try
					{
						xmlHttp = new ActiveXObject('Microsoft.XMLHTTP');
						return xmlHttp;
					}
					catch(e)
					{
						alert("Your browser does not support AJAX!");        
						return null;
					}
				}
			}
		}
	}
}



///以下是同步使用的方法-----------------------------------------------
function GetStringFromUrl(url)
{
	var result = "";
	//xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	xmlhttp = createXmlhttp() ;
	xmlhttp.open("POST",url,false);
	xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); 
	xmlhttp.send(null);
	result = xmlhttp.responseText;
	return result; 
}
   
   function createXmlhttp()
    {
        var xmlhttp = false;
        try
        {
            xmlhttp = new XMLHttpRequest();
        }
        catch(e1)
        {
            try
            {
                xmlhttp = new ActiveXObject("MsXml2.XMLHTTP");
            }
            catch(e2)
            {
                try
                {
                    xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch(e3)
                {
                    xmlhttp = false;
                }
            }
        }
       
        if (!xmlhttp)
        {
            document.write("Error XMLHttpRequest");
        }
        return xmlhttp;
    }