function selectAllOptions(obj) {
 for (var i=0; i<obj.options.length; i++) {
 	obj.options[i].selected=true;
	}
}
function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}
function addOption(selectbox, value, text )
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;
	selectbox.options.add(optn);
}
var xmlhttp;

function selectCounty(str)
{

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="searchgrants_counties2.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
if (xmlhttp.readyState==4)
{
//document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
removeAllOptions(document.getElementById('id_county'));
lines=xmlhttp.responseText.split("\n");
 for (var i=0; i<lines.length-1; i++) {
	data=lines[i].split(",");
 	addOption(document.getElementById('id_county'),data[0],data[1]);
	}

}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}