$(function() {
$("a[href*=View_Document.aspx],a[href*=View_Image.aspx]").each(function() {
        var ar = $(this).attr("href").split("IdDocument=");
        var id = ar[1];
		//call google traker api only if pageTracker object exist in the page
        if (typeof(pageTracker) == "object"){ 
	        $(this).bind('click', function() {
	            $.ajax({
	                dataType: 'text',
	                type: "POST",
	                url: "GetDownloadDocumentName.ashx", 
	                data: "IdDocument=" + id,
	                success: function(msg) {
	                        //call google traker api
	                        //alert(pageTracker._getVersion()); 
	                        //alert('/downloads/' + msg);
	                        try{
	                            if(typeof(pageTracker) == 'object')
	                            pageTracker._initData(); 
	                            pageTracker._trackPageview('/downloads/' + msg);
                            } 
                            catch(err) {} 
	                },
	                error: function(req) {
	                   //alert('si è verificato un errore');
	                }
	            });
	        });
         }
    })
})