// JScript File
function Language_onclick() {
    var st=""
     if (String(window.location).indexOf("?")==-1) {
        st="?Lang=";//there was no any QueryString Before!
        }
    else{ 
        if (String(window.location).indexOf("Lang=")==-1) {
            st="&Lang=";//there was no Lang QueryString Before!
            }
        }
/////////////////////////////////////////////////////
    var NewUrl=""
   	var inx = String(window.location).indexOf("Lang=fa") ;
   	if (inx>-1){//it's Farsi now we will change it to English
   	        if (st==''){//There is Lang before Replace Lang QueryString!
   	            NewUrl=window.location.href.replace("Lang=fa", "Lang=en");//Open English
   	            }
   	        else{//There is no Lang Put Lang QueryString!
   	            NewUrl=window.location.href + st + "en";//Open English
   	            }
   	   	    
   	}
   	else//it's English now we will change it to Farsi 
   	{
   	   	    if (st==''){//There is Lang before Replace Lang QueryString!
   	   	        NewUrl=window.location.href.replace("Lang=en", "Lang=fa");//Open Farsi
   	            }
   	        else{//There is no Lang Put Lang QueryString!
   	            NewUrl=window.location.href + st + "fa";//Open Farsi
   	            }
   	}
   
   	window.location.href=NewUrl;
   	//document.URL='../test.aspx';
}