// JavaScript Document

   //Define Your browser
   var XMLHttpRequestObject = false; 
	 try { 
        XMLHttpRequestObject = new ActiveXObject("MSXML2.XMLHTTP"); 
		  } catch (exception1) { 
         try { 
           XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP"); 
		      } catch (exception2) { 
           XMLHttpRequestObject = false; 
        } 
     } 
	  // agar browser ro nashnakht
	  if (!XMLHttpRequestObject && window.XMLHttpRequest)
	  { 
       XMLHttpRequestObject = new XMLHttpRequest(); 
	    } 
		// End Of Define Your Browser
    var http= XMLHttpRequestObject;