/**
SAL - Simple Ajax Lib. 23-Sep-2005
by Nigel Liefrink
Email: leafrink@hotmail.com
*/

var debug = false;
/**
<summary>
Browser Compatability function.
Returns the correct XMLHttpRequest 
  depending on the current browser.
</summary>
*/
function getXMLHTTP() {

	var xmlhttp = false;
  	if (window.XMLHttpRequest){
    	xmlhttp = new XMLHttpRequest()
  	} else if (window.ActiveXObject) {
    	try {
      		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP")
    	} catch (e) {
      		try {
        		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP")
      		} catch (E) {
      			xmlhttp=false
      		}
    	}
  }
  return xmlhttp;
}




/**
<summary>
Gets the response stream from the passed url, and then calls
   the callbackFuntion passing the response and the div_ids.
</summary>
<param name="url">The url to make the request
            to get the response data.</param>
<param name="callbackFunction">The function to call after 
the response has been recieved.
The response <b>must</b> always 
be the first argument to the function.</param>
<param name="params"> (optional) Any other parameters 
you want to pass to the functions.
(Note: only constants/strings/globals can be passed
       as params, most variables will be out of scope.)
</param>
<example>
    <code>
PassAjaxResponseToFunction('?getsomehtml=1', 
              'FunctionToHandleTheResponse', 
              "\'div1\',\'div2\',\'div3\'');

function FunctionToHandleTheResponse(response, d1, d2, d3){
    var data = response.split(';');
    document.getElementById(d1).innerHTML = data[0];
    document.getElementById(d2).innerHTML = data[1];
    document.getElementById(d3).innerHTML = data[2];
}
    </code>
</example>
*/


function PassAjaxResponseToFunction(url, callbackFunction, params) {
	var xmlhttp = new GetXmlHttp();
  //now we got the XmlHttpRequest object, send the request.

	if (xmlhttp) {
  		xmlhttp.onreadystatechange = function() {
    		if (xmlhttp && xmlhttp.readyState==4) {//we got something back..

        		if (xmlhttp.status==200) {
            		
           			var response = xmlhttp.responseText;
               		var functionToCall = callbackFunction + '(response,'+params+')';
                	
               		if(debug) {
                   		alert(response);
                   		alert(functionToCall);
               		}
                  	
               		eval(functionToCall);
                  	
        		} else if(debug) {
            		
          			document.write(xmlhttp.responseText);
          			
        		}
        	
        	}
		}
	
  	xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
    
    }
}


/**
<summary>
Sets the innerHTML property of obj_id with the response from the passed url.
</summary>
<param name="url">The url to make the request 
to get the response data.</param>
<param name="obj_id">The object or the id of 
the object to set the innerHTML for.</param>
*/

function SetInnerHTMLFromAjaxResponse(url, obj_id) {
  
  var xmlhttp = new GetXmlHttp();
  //now we got the XmlHttpRequest object, send the request.

  if (xmlhttp) {
    xmlhttp.onreadystatechange = function() {
              if (xmlhttp && xmlhttp.readyState == 4) {//we got something back..

                if (xmlhttp.status == 200) {
                
                	if(debug) {
                    	alert(xmlhttp.responseText);
                  	}
                  	
                  	if(typeof obj_id == 'object') {
                    	obj_id.innerHTML = xmlhttp.responseText;
                  	} else {
                    	document.getElementById(obj_id).innerHTML = xmlhttp.responseText;
                  	}
                  	
                } else if(debug) {
                	document.Write(xmlhttp.responseText);
                }
              }
            }
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
  }
  
}