Ajax call failing. Using Jquery .ajax function to make simple request

Here is the jquery to call the ajax function:

   function sendAjax(type, succ){  //where succ is the success callback

   if (type=="")
   {
        $("#txtResp").empty();
        return;
   }

   if(succ === undefined) {   succ = null;  }

   switch(type)
   {
   case 'run':
       $.ajax({type:"GET",
               url: "start_mess.php",
               data: "q="+type,
          开发者_JAVA百科     success: succ
       }); 
     break;
   }

}

Here is the index.html page content:

    function initialLoad() 
{                   
    sendAjax('run')
    $("#txtResp").html(responseText);
}

initialLoad();

Here is the PHP page:

echo $_GET['q'];
$q = $_GET['q'];

Any Idea why this is not working? Thank you!

Taylor

You are not passing a callback, so there is nothing to call on success.

Try sendAjax('run', function(data) { alert(data) });.