//Position the website vertically
function verticalAlign(divid,siteHeight){
	if (self.innerWidth){
		frameHeight = self.innerHeight;
	}else 
	if (document.documentElement && document.documentElement.clientWidth){
		frameHeight = document.documentElement.clientHeight;
	}else
	if (document.body){
		frameHeight = document.body.clientHeight;
	}
	if(frameHeight>siteHeight){
		var verticalPadding=(frameHeight-siteHeight)/2;
		id=document.getElementById(divid);
		id.style.paddingTop=verticalPadding+"px";
	}
}

//Do Fading Slideshow for Splash page
var max_bgnum=7; //num of backgrounds
var bg_swaptime=4; //in seconds;
var bgnum=1; //Start Background Number
var milli	= 400;
var speed	= Math.round(milli / 100); 
var timer	= 0;

function swapBgImage(){
	//Id of DIV that background image is in
	id			= "tpl_slideshow";
	
	bgnum++;
	if(bgnum>max_bgnum){
		bgnum=1;
	}

	//Fade out Image
	for(i = 100; i >= 0; i--){ 
		setTimeout("changeOpac(" + i + ",'" + id + "'," + bgnum + ")",(timer * speed)); 
		timer++;
	} 			

	//Fade Image back in
	for(i = 0; i <= 100; i++) { 
		setTimeout("changeOpac(" + i + ",'" + id + "'," + bgnum + ")",(timer * speed)); 
		timer++; 
	} 
	
} 

//change the opacity for different browsers
//Function based on http://www.brainerror.net/scripts_js_blendtrans.php
function changeOpac(opacity, id, bgnum) { 
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100); 
	object.MozOpacity = (opacity / 100); 
	object.KhtmlOpacity = (opacity / 100); 
	object.filter = "alpha(opacity=" + opacity + ")"; 

	if(opacity == 1){
		//Swap Image
		document.getElementById(id).src="images/uploaded/slideshow/slideshow_"+bgnum+".jpg";
	}
} 
var scrollTimer=window.setInterval("swapBgImage();",(bg_swaptime*500));