//functions.js
//Create a boolean variable to check for a valid IE instance.
var xmlhttp = false;
//Check if we are using IE.
try {
	//If the javascript version is greater than 5.
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
	//If not, then use the older active x object.
	try {
		//If we are using IE.
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
		//Else we must be using a non-IE browser.
		xmlhttp = false;
		}
	}
//If we are using a non-IE browser, create a JavaScript instance of the object.
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
	xmlhttp = new XMLHttpRequest();
}
//Function to set a loading status.
function setStatus (theStatus, theObj){
obj = document.getElementById(theObj);
if (obj){
obj.innerHTML = "<div class=\"bold\">" + theStatus + "</div>";
}
}
function makerequest(serverPage, objID) {
var obj = document.getElementById(objID);
xmlhttp.open("GET", serverPage);
xmlhttp.onreadystatechange = function() {
setStatus ("<img src='picLoad.gif' border = '0' style='float:left'/><br/><br/>Loading...","waitStatus");
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
obj.innerHTML = xmlhttp.responseText;
}
}
xmlhttp.send(null);
}


//A variable used to distinguish whether to open or close the calendar.
var showCalendar = true;
function showHideCalendar(objID) {
	//The location we are loading the page into.
	//var objID = "calendar";
	//Change the current image of the minus or plus.
	if (showCalendar == true){
		//Show the calendar.
		document.getElementById("opencloseimg").src = "images/mins.gif";
		//The page we are loading.
		var serverPage = "calendar.php";
		//Set the open close tracker variable.
		showCalendar = false;
		var obj = document.getElementById(objID);
		xmlhttp.open("GET", serverPage);
		xmlhttp.onreadystatechange = function() {
			if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
				obj.innerHTML = xmlhttp.responseText;
			}
		}
		xmlhttp.send(null);
	} else {
		//Hide the calendar.
		document.getElementById("opencloseimg").src = "images/plus.gif";
		showCalendar = true;
		document.getElementById(objID).innerHTML = "";
	}
}

function createform (e){
	theObject = document.getElementById("createtask");
	theObject.style.visibility = "visible";
	theObject.style.height = "200px";
	theObject.style.width = "200px";
	var posx = 0;
	var posy = 0;
	posx = e.clientX + document.body.scrollLeft;
	posy = e.clientY + document.body.scrollTop;
	theObject.style.left = posx + "px";
	theObject.style.top = posy + "px";
	//The location we are loading the page into.
	var objID = "createtask";
	var serverPage = "theform.php";
	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}
function closetask (){
	theObject = document.getElementById("createtask");
	theObject.style.visibility = "hidden";
	theObject.style.height = "0px";
	theObject.style.width = "0px";
	acObject = document.getElementById("autocompletediv");
	acObject.style.visibility = "hidden";
	acObject.style.height = "0px";
	acObject.style.width = "0px";
}
function findPosX(obj){
	var curleft = 0;
	if (obj.offsetParent){
		while (obj.offsetParent){
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	} else if (obj.x){
		curleft += obj.x;
	}
	return curleft;
}

function findPosY(obj){
	var curtop = 0;
	if (obj.offsetParent){
		while (obj.offsetParent){
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	} else if (obj.y){
		curtop += obj.y;
	}
	return curtop;
}
function autocomplete (thevalue, e){
	theObject = document.getElementById("autocompletediv");
	theObject.style.visibility = "visible";
	theObject.style.width = "152px";
	var posx = 0;
	var posy = 0;
	posx = (findPosX (document.getElementById("yourname")) + 1);
	posy = (findPosY (document.getElementById("yourname")) + 23);
	theObject.style.left = posx + "px";
	theObject.style.top = posy + "px";
	var theextrachar = e.which;
	if (theextrachar == undefined){
		theextrachar = e.keyCode;
	}
	//The location we are loading the page into.
	var objID = "autocompletediv";
	//Take into account the backspace.
	if (theextrachar == 8){
		if (thevalue.length == 1){
			var serverPage = "autocomp.php";
		} else {
			var serverPage = "autocomp.php" + "?sstring=" + thevalue.substr (0, (thevalue.length -1));
		}
	} else {
		var serverPage = "autocomp.php" + "?sstring=" + thevalue + String.fromCharCode (theextrachar);
	}
	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}
function setvalue (thevalue){
	acObject = document.getElementById("autocompletediv");
	acObject.style.visibility = "hidden";
	acObject.style.height = "0px";
	acObject.style.width = "0px";
	document.getElementById("yourname").value = thevalue;
}
function validateform (thevalue){
	serverPage = "validator.php?sstring=" + thevalue;
	objID = "messagebox";
	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}
function checkfortasks (thedate, e){
	theObject = document.getElementById("taskbox");
	theObject.style.visibility = "visible";
	var posx = 0;
	var posy = 0;
	posx = e.clientX + document.body.scrollLeft;
	posy = e.clientY + document.body.scrollTop;
	theObject.style.left = posx + "px";
	theObject.style.top = posy + "px";
	serverPage = "taskchecker.php?thedate=" + thedate;
	objID = "taskbox";
	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}
function hidetask (){
	tObject = document.getElementById("taskbox");
	tObject.style.visibility = "hidden";
	tObject.style.height = "0px";
	tObject.style.width = "0px";
}
function uploadimg (theform){
//Submit the form.
theform.submit();
//Then display a loading message to the user.
setStatus ("<img src='picLoad.gif' border = '0' style='float:left'/><br/><br/>Loading...","showimg");
}

function runajaxGal(objID, serverPage)
{
	//Create a boolean variable to check for a valid Internet Explorer instance.
	var xmlhttp = false;
	//Check if we are using IE.
	try {
		//If the JavaScript version is greater than 5.
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		//If not, then use the older ActiveX object.
		try {
			//If we are using Internet Explorer.
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (E) {
			//Else we must be using a non-IE browser.
			xmlhttp = false;
		}
	}
	// If we are not using IE, create a JavaScript instance of the object.
	if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	var obj = document.getElementById(objID);
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			obj.innerHTML = xmlhttp.responseText;
		}
	}
	xmlhttp.send(null);
}
// Delay in milliseconds before refreshing gallery.
var refreshrate = 1000;
//Function to show a loading message.
function updateStatusGal()
{
	document.getElementById("errordiv").innerHTML = "";
	document.getElementById("middiv").innerHTML = "<div align='center' style='border-style:none; height:100%;'><b><img class = 'imgGalBig' src = 'ajax.gif' border = '0'>Loading...</b></div>";
}
function refreshViewGal()
{
	// Reload the full-size image.
	setTimeout ('runajaxGal ("middiv","midpic.php")',refreshrate);
	// Reload the navigation.
	setTimeout ('runajaxGal ("picdiv","picnav.php")',refreshrate);
}
function uploadimgGal(theform)
{
	// Update user status message.
	updateStatusGal();
	// Now submit the form.
	theform.submit();
	// And finally update the display.
	refreshViewGal();
}
function removeimgGal(theimg)
{
	runajaxGal("errordiv", "delpic.php?pic=" + theimg);
	refreshViewGal();
}
function imageClickGal(img)
{
	updateStatusGal();
	runajaxGal('middiv', 'midpic.php?curimage=' + img);
	runajaxGal('picdiv', 'picnav.php?curimage=' + img);
}