function search(searchString)
{
	var http_request = null;
	if(window.XMLHttpRequest)
		http_request = new XMLHttpRequest();
	else if(window.ActiveXObject)
		http_request = new ActiveXObject("Microsoft.XMLHTTP");

	document.getElementById('search').innerHTML = "<img src=\"img/index/load.gif\" alt=\"... loading\" />";

	http_request.onreadystatechange = function()
	{
		if(http_request.readyState == 4)
		{
			if(http_request.status == 200)
			{
				document.getElementById('search').innerHTML = http_request.responseText;
			}
			else
			{
				alert("Error code "+http_request.status);
			}
		}
	}
	var url = "php/search.php";
	var params = "search="+encodeURI(searchString);
		
	http_request.open("POST",url,true); //false important for synchronous communication, because gb_list must be after adding!!
	http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", params.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(params);
}