/*--------------------------------------
	User configured variables
--------------------------------------*/
var inputId = 'search'; 
									
var outputId = 'searchresults';
									
var processURI    = './buscaVideo.php';
									
var emptyString   = '';

/*--------------------------------------
	Script Stuff
--------------------------------------*/
var liveReq = false;
var t = null;
var liveReqLast = "";
var isIE = false;

var inputElement;
var outputElement;

// on !IE we only have to initialize it once
if (window.XMLHttpRequest) {
	liveReq = new XMLHttpRequest();
}

function liveReqInit() {
	
	inputElement  = document.getElementById(inputId);
	outputElement = document.getElementById(outputId);
	
	if( inputElement == null || outputElement == null ) 
		return;
	
	
	if (navigator.userAgent.indexOf("Safari") > 0) {
		inputElement.addEventListener("keydown",liveReqStart,false);
		
	} else if (navigator.product == "Gecko") {
		inputElement.addEventListener("keypress",liveReqStart,false);
		
	} else {
		inputElement.attachEvent('onkeydown',liveReqStart);
		isIE = true;
	}
	
	if(emptyString == '') {
		// set the result field to hidden, or to default string
		outputElement.style.display = "none";
	} else {
		outputElement.innerHTML = emptyString;
	}
}

addLoadEvent(liveReqInit);

function liveReqStart() {
	if (t) {
		window.clearTimeout(t);
	}
	t = window.setTimeout("liveReqDoReq()",400);
}

function liveReqDoReq() {
	if (liveReqLast != inputElement.value && inputElement.value != "") {
		if (liveReq && liveReq.readyState < 4) {
			liveReq.abort();
		}
		if (window.XMLHttpRequest) {
		// branch for IE/Windows ActiveX version
		} else if (window.ActiveXObject) {
			liveReq = new ActiveXObject("Microsoft.XMLHTTP");
		}
		
		liveReq.onreadystatechange = liveReqProcessReqChange;
		liveReq.open("GET", processURI + "?search=" + encodeURI(inputElement.value));
		liveReqLast = inputElement.value;
		liveReq.send(null);
	} else if(inputElement.value == "") {
		if(emptyString == '') {
			outputElement.innerHTML = '';
			outputElement.style.display = "none";
		} else {
			outputElement.innerHTML = emptyString;
		}
	}
}

function liveReqProcessReqChange() {
	if (liveReq.readyState == 4) {
		outputElement.innerHTML = liveReq.responseText;
		if(emptyString == '') {
			outputElement.style.display = "block";
		}
	}
}