var tempId;
function doChange(opt)
  {
   
    var strUrl = "text_chane.php?opt=" + opt;

	xmlhttpPost_common(strUrl);
  }

function fClose_left()
{
	document.getElementById('express').innerHTML = "<div id='express'></div>";
}

function xmlhttpPost_common(strURL) {
    var xmlHttpReq = false;
    var self = this;
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
	strURL = strURL;
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.onreadystatechange = function() 
	{
	    if (self.xmlHttpReq.readyState == 4) 
		{
              updatepage_common(self.xmlHttpReq.responseText);
        }
    }
    self.xmlHttpReq.send(getquerystring_common());
}

function getquerystring_common() {

   qstr = "";
    return qstr;

}

function updatepage_common(str)
{
	document.getElementById("express").innerHTML = str;
}// JavaScript Document