var http_request = false;
   function makeRequest(url, parameters, div_containter) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      http_request.onreadystatechange = alertContents;
      http_request.open('GET', url + parameters, true);
      http_request.send(null);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            alert('Your Wish List has been updated.');
            result = http_request.responseText;
            document.getElementById('ajax').innerHTML = result;
         } else {
            alert('There was a problem with the request:' + result);
         }
      }
   }

function get(obj) {
    inputTags = document.getElementsByTagName("input");
    var getstr = "?";
    for (i=0; i<inputTags.length; i++) {
        switch(inputTags[i].type) {
            case 'text':
                getstr += inputTags[i].name + "=" + inputTags[i].value + "&";
                break;
            case 'checkbox':
                if (inputTags[i].checked)
                    getstr += inputTags[i].name + "=" + inputTags[i].value + "&";
                else
                    getstr += inputTags[i].name + "=&";
                break;
            case 'radio':
                if (inputTags[i].checked)
                    getstr += inputTags[i].name + "=" + inputTags[i].value + "&";
                break;
        }
    }
    selectTags = document.getElementsByTagName("SELECT");
    for (i=0; i<selectTags.length; i++) {
      var sel = selectTags[i];
      getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
    }
    makeRequest('../ajax/ajax_request.php', getstr,'ajax');
}