var xmlHttp


function showHint(str){
	if (str.length==0){ 
		document.getElementById("txtHint").innerHTML=""
		return
	}
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null){
		alert ("Browser does not support HTTP Request")
		return
	} 
	var url="hori.php"
	url=url+"?state="+str
	//url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET",url,true)
	//xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded')
	
	xmlHttp.send()
	delete xmlHttp
} 

function stateChanged(){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
		//document.getElementById("txtHint").innerHTML=xmlHttp.responseText 
		setTimeout('resetImage()',2000);
	} 
} 
//Funcion que regresa el XMLHTTPOBJECT segun el browser Mozilla o IE6
function GetXmlHttpObject(){ 
	var objXMLHttp=null
	if (window.XMLHttpRequest){
		objXMLHttp=new XMLHttpRequest()
	}
	else if (window.ActiveXObject){
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
return objXMLHttp
} 


function resetImage() {
	document.getElementById("txtHint").innerHTML = '<img id="graphImage" name="graphImage" src="hori.php">'
    // show the submit image button for another AJAX call.
    //document.getElementById('theImage').innerHTML = '<a href="javascript:void(0);" onclick="getFile(\'http://www.rodsdot.com/ee/stateDropDownSelect.asp?l=\'+document.getElementById(\'letter\')[document.getElementById(\'letter\').selectedIndex].value)"><img id="submitImage" name="submitImage" src="images/ajaxCallChangeImage_submit.gif" alt="Submit AJAX Request" type="image"><\/a>';
}