// getElementsByClass(searchClass,node,tag)

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp('(^|\\\\s)'+searchClass+'(\\\\s|$)');
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements.id;
}



var xmlhttp;
var div_id;
function loadXMLDoc(url)
{
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  // set the callback function
  xmlhttp.onreadystatechange=stateChange;
  xmlhttp.open("GET",url,true);
  xmlhttp.send(null);
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  // set the callback function
  xmlhttp.onreadystatechange=stateChange;
  xmlhttp.open("GET",url,true);
  xmlhttp.send();
  }
}

function stateChange()
{
if (xmlhttp.readyState==4)
  {
  if (xmlhttp.status==200)
    {
    // process whatever has been sent back here
    // div_id='#' needs to be place in 'onClick...'
    document.getElementById(div_id).innerHTML=xmlhttp.responseText;
    div_id="";
    }
  else
    {
    alert("There was a problem in the returned data");
    }
  }
}