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08.02.2008 at 10:08AM PDT, ID: 23616369
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9.5

Hielo - Want to add please wait message/graphic to ajax request process

Asked by owenparker in Asynchronous Javascript and XML (AJAX), JavaScript, PHP Scripting Language

Tags:

I have been looking at some samples of this, but none match up with the method I am using enough for me to get them working so, I guess that's why I buy this service.

The AJAX request functions I have used for a long time.  I believe they came to me via Hielo, or he at least helped me greatly in understanding this AJAX stuff enough to use it.  As some of the requests take as long as 5 secs, I wanted to add a please wait graphic/message to give tyhings a finished look and to give users something to look at to distract them from re-clicking buttons and such.

Ideally, a graphic/message would pop up in a div over top whatever is going on.  I'm not sure how tricky this is, but I had no luck in being able to do so.  

As per usual, I have included the AJAX code and will provide whatever else may be required, although to my mind, it should be as simple as adding something to this code to go with a div in the calling php program, but then, what do I know.  I couldn;t get it to work...

Many thanks in advance for any offers of help I receive in solving this problem...

Regards
Owen

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//  AED AJAX retrieval
var xmlHttp=null;
function fetchData(url,targetElem) {
   xmlHttp=GetXmlHttpObject();
   if (xmlHttp==null) {
      alert ("Your browser does not support AJAX!");
      return false;
   }
   //add random number to avoid cached data
   if( -1==url.indexOf("?") )
      url += "?sid="+Math.random();
   else
      url=url+"&sid="+Math.random();
 
   xmlHttp.onreadystatechange=function(){stateChanged(targetElem);};
   xmlHttp.open("GET",url,true);
   xmlHttp.send('');
}
 
function stateChanged(containerElem) {
   if (xmlHttp.readyState==4) {
      var data = null;
      eval("data =" + xmlHttp.responseText + ";");
      for( var i=0; i < data.length; ++i) {
         document.getElementById(data[i].targetDiv).innerHTML = data[i].html;
      }
      switch(containerElem) {
         case "getcntry":
            if ( document.getElementById('countryname').value !='' ) {
               setTimeout("document.getElementById('civicnumber').focus()",500)
            } else {
               setTimeout("document.getElementById('country').focus()",500)
            }
            break;
 
         case "getassdtl":
            setTimeout("document.getElementById('employeeid').focus()",500)
            break;
 
         case "getclisrvc":
            setTimeout("document.getElementById('clientid').focus()",500)
            break;
 
         case "addservice":
            setTimeout("document.getElementById('clientid').focus()",500)
            break;
 
         case "newticketdata":
            setTimeout("document.getElementById('streetname').focus()",500)
            break;
 
         case "getitem":
            setTimeout("document.getElementById('reqdesc').focus()",500)
            break;
 
      }
      xmlHttp=null;
   }
 
}
 
function GetXmlHttpObject() {
   var xmlHttp=null;
   try {
      // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
   }
   catch (e) {
      // Internet Explorer
      try {
         xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
      catch (e) {
         xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
   }
   return xmlHttp;
}
[+][-]08.02.2008 at 10:20AM PDT, ID: 22144972

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About this solution

Zones: Asynchronous Javascript and XML (AJAX), JavaScript, PHP Scripting Language
Tags: AJAX, Javascript, PHP
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Solution Provided By: hielo
Participating Experts: 1
Solution Grade: A
 
 
[+][-]08.02.2008 at 10:45AM PDT, ID: 22145041

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[+][-]08.02.2008 at 03:06PM PDT, ID: 22145865

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[+][-]08.02.2008 at 03:53PM PDT, ID: 22145989

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