// Javascript document
// Provides Ajax class implementation
// Original script: http://www.devx.com/tips/Tip/31066

function AjaxConnection() 
{
   this.setOptions=setOptions;
   this.getOptions=getOptions;
   this.connect=connect;
}
// Variables
function setOptions(opt)
{
   for(i=1;i<opt.length;i++)  
   {
      this.options += "&"+opt[i];
   }
// URL
   this.url = ""+opt[0];
}
function getOptions()
{
   return this.options;
   return this.url;
}
// Analyze connection results
  function connect(return_func)
{
    with(this)
    {
        x=init_object();
        x.open("GET", url+"?"+options,true);
        x.onreadystatechange = function() {
                if (x.readyState != 4)
                        return;
                eval(return_func + '(x.responseText)');
                delete x;
        }
        x.setRequestHeader('Content-Type',
            'application/x-www-form-urlencoded');
        x.send(null);
    }
}
// Initialisation of the XML object
  function init_object() {
        var x;
        try {
                x=new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
                try {
                        x=new ActiveXObject("Microsoft.XMLHTTP");
                } catch (oc) {
                        x=null;
                }
        }
        if(window.XMLHttpRequest){
                x = new XMLHttpRequest();
                if (x.overrideMimeType) {
                x.overrideMimeType('text/xml');
            }
        }
        if (x)
                return x;
}