var xmlHttp;
storedVal=-2;

/***********************
POLL
***********************/

function displayVoteBox()
{ 
	GetXmlHttpObject();
	if (xmlHttp==null)
	 {
	 alert ("Your browser does not support this feature!");
	 return;
	 }
	var url="http://"+location.host+"/includes/ajax/pollresults.php";
	url=url+"?v="+storedVal;
	
	xmlHttp.onreadystatechange = voteBoxChange;
	try {
		xmlHttp.open("GET",url,true);
	}
	catch (e) {
		alert("Your vote could not be processed.  Please try again later.");
	}
	xmlHttp.send(null);
	
}

function changePoll(value)
{
	if (value == -1) {
		displayVoteBox();
	}
	else
		storedVal=value;
}

function voteBoxChange() 
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 document.getElementById("voteBox").innerHTML=xmlHttp.responseText;
 } 
}


/***********************
LETTER TO EDITOR
***********************/

function sendLetter()
{ 
	GetXmlHttpObject();
	if (xmlHttp==null)
	 {
	 alert ("Your browser does not support this feature!");
	 return;
	 }
	 
	var url="http://"+location.host+"/includes/ajax/sendletter.php";

	var parms="n="+document.getElementById("letterName").value
				+"&t="+document.getElementById("letterText").value
				+"&y="+document.getElementById("letterYear").value
				+"&p="+document.getElementById("letterPhone").value
				+"&e="+document.getElementById("letterEmail").value;

	
	xmlHttp.onreadystatechange=letterChange;
	try {
		xmlHttp.open("POST",url,true);
	}
	catch (e) {
		alert("Your letter could not be processed.  Please try again later.");
	}
	
	//Send the proper header information along with the request
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", parms.length);
	xmlHttp.setRequestHeader("Connection", "close");
	
	xmlHttp.send(parms);
	
}

function letterChange() 
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 document.getElementById("letterBox").innerHTML=xmlHttp.responseText;
 } 
}

/***********************
DINING MENUS
***********************/

function getMenus(query, option)
{ 
	GetXmlHttpObject();
	if (xmlHttp==null)
	 {
	 alert ("Your browser does not support this feature!");
	 return;
	 }
	var url="http://"+location.host+"/includes/ajax/menusearch.php";
	url=url+"?q="+query+"&o="+option;
	
	xmlHttp.onreadystatechange = menuStateChange;
	try {
		xmlHttp.open("GET",url,true);
	}
	catch (e) {
		alert("Your vote could not be processed.  Please try again later.");
	}
	xmlHttp.send(null);
	
}

function searchMenu(value)
{
	var query=document.getElementById("query").value;
	var option=document.getElementById("option").value;
	getMenus(query, option);
}

function menuStateChange() 
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 document.getElementById("dining_results").innerHTML=xmlHttp.responseText;
 } 
}


//Create AJAX Object
function GetXmlHttpObject()
{
	try
	 {
	 // Firefox, Opera 8.0+, Safari
	 xmlHttp=new XMLHttpRequest();
	 }
	catch (e)
	 {
	 //Internet Explorer
	 try
	  {
	  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	  }
	 catch (e)
	  {
	  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
	 }
}