//Start everything up
//addLoadEvent(show);				//Show the menu
addLoadEvent(startSlideshow);
//addLoadEvent(ticker_update);
addLoadEvent(ticker_start);
var newsStr;
var mySlideData;

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

function ticker_init(tickerStrings, noItems){
	//Set up the ticker string using data from array created by php at top of home page
	newsStr = '  ';
	for(var index=0; index < noItems; index++){
		newsStr += tickerStrings[index] + "&nbsp;&nbsp;";
	}
}

	function ticker_start(){
		var TickerStr = document.getElementById('TICKER');
		TickerStr.innerHTML = newsStr;	//Use strings obtained from php init
		TICKER_CONTENT = TickerStr.innerHTML;
		TICKER_STR_LN = TickerStr.offsetWidth;
//		alert(TICKER_STR_LN);
		TICKER_LEFTTORIGHT = true;	//Scroll left to right when true
		TICKER_SPEED = 2;
		TICKER_STYLE = "";	//font-family:Arial; font-size:12px; color:#444444
		TICKER_PAUSED = false;

		tickPos = 0;		//Current scroll position of news crawl text
		textWidth = 0;		//Holds width of crawl text after init.
		viewWidth = 0;		//Holds width of the crawl text view
//		alert("Ticker Starting");
		var tickerSupported = false;
		TICKER_WIDTH = document.getElementById("TICKER").style.width;
		var img = "<img src=Images/ticker_space.gif width="+TICKER_WIDTH+" height=0>";


		// Firefox
		if (navigator.userAgent.indexOf("Firefox")!=-1 || navigator.userAgent.indexOf("Safari")!=-1) {
			document.getElementById("TICKER").innerHTML = "<TABLE  cellspacing='0' cellpadding='0'><TR><TD nowrap='nowrap'>"+TICKER_CONTENT+"</TD></TR></TABLE>";
			viewWidth = document.getElementById("TICKER_FRAME").offsetWidth - 10;
			textWidth = document.getElementById("TICKER_FRAME").scrollWidth;
			document.getElementById("TICKER").style.left = viewWidth + "px";
			tickerSupported = true;
			TICKER_tick();
		}
		// IE
		if (navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1) {
//			document.getElementById("TICKER").innerHTML = "<DIV nowrap='nowrap' style='width:100%;'>"+img+"<SPAN style='"+TICKER_STYLE+"' ID='TICKER_BODY' width='100%'></SPAN>"+img+"</DIV>";
			document.getElementById("TICKER").innerHTML = "<TABLE  cellspacing='0' cellpadding='0'><TR><TD nowrap='nowrap'>"+TICKER_CONTENT+"</TD></TR></TABLE>";
			viewWidth = document.getElementById("TICKER_FRAME").offsetWidth - 10;
			textWidth = document.getElementById("TICKER_FRAME").scrollWidth;
			document.getElementById("TICKER").style.left = viewWidth + "px";
			tickerSupported = true;
		}

		if(!tickerSupported)
			document.getElementById("TICKER").outerHTML = "";
		else{
			document.getElementById("TICKER").scrollLeft = TICKER_LEFTTORIGHT ? document.getElementById("TICKER").scrollWidth - document.getElementById("TICKER").offsetWidth : 0;
//			document.getElementById("TICKER_BODY").innerHTML = TICKER_CONTENT;
			document.getElementById("TICKER").style.display="block";
			TICKER_tick();
		}
	}

	function TICKER_tick() {
		if(!TICKER_PAUSED) tickPos += TICKER_SPEED;
		
//		if(TICKER_LEFTTORIGHT && document.getElementById("TICKER").scrollLeft <= 0) document.getElementById("TICKER").scrollLeft = document.getElementById("TICKER").scrollWidth - document.getElementById("TICKER").offsetWidth;
//		if(!TICKER_LEFTTORIGHT && document.getElementById("TICKER").scrollLeft >= document.getElementById("TICKER").scrollWidth - document.getElementById("TICKER").offsetWidth) document.getElementById("TICKER").scrollLeft = 0;
		
		//offsetWidth: the visible width of an element
		//scrollWidth: the entire width of an element
		//scrollLeft: the number of pixels to the left that an element has been scrolled
		//scrollWidth - offsetWidth = max. scrollLeft
		if(TICKER_LEFTTORIGHT){
//			if(tickPos >= (textWidth + viewWidth)){ 
			if(tickPos >= (TICKER_STR_LN + (viewWidth *2))){ 
				document.getElementById("TICKER").style.left = viewWidth + "px";
				tickPos = 0;
			}
			else
				document.getElementById("TICKER").style.left = (-tickPos + viewWidth) + "px";
		}
		
		//DEBUG
//		document.getElementById("TICK_POS").innerHTML = document.getElementById("TICKER").scrollWidth + " " + document.getElementById("TICKER").offsetWidth + " " + document.getElementById("TICKER_FRAME").scrollWidth + " " + document.getElementById("TICKER_FRAME").offsetWidth + " " + tickPos + " " + textWidth;
		
		window.setTimeout("TICKER_tick()", 100);
	}

function startSlideshow() {
//	var slideshow = new timedSlideShow($('mySlideshow'), mySlideData);
	var slideshow = new Slideshow('homePgSlideshow', mySlideData, { captions: { delay: 1000 }, delay: 3000, height: 385, hu: '', resize: 'fit', overlap: false, center: true, thumbnails: false});
	
//	alert("Slideshow started");
}

function show(id) {
	var d = document.getElementById(id);
	
	for (var i = 1; i<=10; i++) {
		if (document.getElementById('smenu'+i)) {
			document.getElementById('smenu'+i).style.display='none';
		}
	}

	if (d) {
		d.style.display='block';
	}
}

function init(){
//	window.onload=show;				//Dropdown Menus
//	window.onload=startSlideshow;	//Slideshow
}

function getLogIn(variable) {
var query = window.location.search.substring(1);
var vars = query.split("&");

	for(var i=0;i<vars.length;i++){
		var pair = vars[i].split("=");

		if (pair[0] == variable) {
			return "<a href='PHP_Scripts/LogOut.php'>Log Out</a>";
		}
	} 

	return "<a href='PHP_Scripts/LogIn.php'>Log In</a>";
}

function GetUser(){
	document.getElementById('idLogIn').innerHTML = getLogIn("User");
}

function isdefined(variable)
{
	if (typeof variable == 'undefined'){
		// variable x does not exist
		return false;
	}
	else
		return true;
}


function UpdateCharCount(fieldName){
//	alert("formName: "+formName+" fieldName: "+fieldName);
//	alert("got update char count: "+document.formName.fieldName.value.length+" innerHTML: "+document.getElementById(fieldName+'Count').innerHTML);
	var x=document.getElementsByName(fieldName);
//	alert(x[0].textLength);
	var tmpStr = x[0].value;
//	alert(tmpStr.replace(/[\r\n]/g, "x"));
	var repStr = tmpStr.replace(/[\r\n]/g, "cr");
//	alert(repStr);
//	document.getElementById(fieldName+'Count').innerHTML = x[0].textLength;
	document.getElementById(fieldName+'Count').innerHTML = repStr.length;
	
	//document.formName.fieldName.value.length;
}