//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

// JavaScript Documentvar progress_bar_paused = false;
var overlay_effect = false;

function CenterProgressBar() {
	if ($('please_wait')) {
		var arrayPageSize = getPageSize(); 
		var arrayPageScroll = getPageScroll();
		var left = (arrayPageSize[2]/2) - 85;
		var top = arrayPageScroll[1] + (arrayPageSize[3]/2) - 23;
		Element.setStyle('please_wait', $H({"left": left + "px"}));
		Element.setStyle('please_wait', $H({"top": top + "px"}));
	}
}

function ShowProgressBar() {
	CenterProgressBar();
	if (progress_bar) {
		progress_bar.showBar();
		if (progress_bar_paused) {
			progress_bar.togglePause();
			progress_bar_paused = false;
		}
	}
	if ($('please_wait')) {
		Element.show('please_wait');
	}
	if ($('please_wait_overlay')) {
		var arrayPageSize = getPageSize(); 
		Element.setStyle('please_wait_overlay', $H({"height": arrayPageSize[1] + "px"}));
		if (overlay_effect) {
			new Effect.Appear('please_wait_overlay', { duration: 0.1, from: 0.0, to: 0.2 });
		} else {
			Element.setOpacity('please_wait_overlay', 0);
			Element.show('please_wait_overlay');
		}
	}
}

function HideProgressBar() {
	if (progress_bar) {
		if (!progress_bar_paused) {
			progress_bar.togglePause();
			progress_bar_paused = true;
		}
		progress_bar.hideBar();
	}
	if ($('please_wait')) {
		Element.hide('please_wait');
	}
	if ($('please_wait_overlay')) {
		if (overlay_effect) {
			new Effect.Fade('please_wait_overlay', { duration: 0.1, from: 0.2, to: 0.0});
		} else {
			Element.setOpacity('please_wait_overlay', 0);
			Element.hide('please_wait_overlay');
		}
	}
}
// xp_progressbar
// Copyright 2004 Brian Gosselin of ScriptAsylum.com
//
// v1.0 - Initial release
// v1.1 - Added ability to pause the scrolling action (requires you to assign
//        the bar to a unique arbitrary variable).
//      - Added ability to specify an action to perform after a x amount of
//      - bar scrolls. This requires two added arguments.
// v1.2 - Added ability to hide/show each bar (requires you to assign the bar
//        to a unique arbitrary variable).

// var xyz = createBar(
// total_width,
// total_height,
// background_color,
// border_width,
// border_color,
// block_color,
// scroll_speed,
// block_count,
// scroll_count,
// action_to_perform_after_scrolled_n_times
// )
var w3c=(document.getElementById)?true:false;
var ie=(document.all)?true:false;
var N=-1;

function createBar(w,h,bgc,brdW,brdC,blkC,speed,blocks,count,action){
if(ie||w3c){
var t='<div id="_xpbar'+(++N)+'" style="visibility:visible; position:relative; overflow:hidden; width:'+w+'px; height:'+h+'px; background-color:'+bgc+'; border-color:'+brdC+'; border-width:'+brdW+'px; border-style:solid; font-size:1px;">';
t+='<span id="blocks'+N+'" style="left:-'+(h*2+1)+'px; position:absolute; font-size:1px">';
for(i=0;i<blocks;i++){
t+='<span style="background-color:'+blkC+'; left:-'+((h*i)+i)+'px; font-size:1px; position:absolute; width:'+h+'px; height:'+h+'px; '
t+=(ie)?'filter:alpha(opacity='+(100-i*(100/blocks))+')':'-Moz-opacity:'+((100-i*(100/blocks))/100);
t+='"></span>';
}
t+='</span></div>';
document.write(t);
var bA=(ie)?document.all['blocks'+N]:document.getElementById('blocks'+N);
bA.bar=(ie)?document.all['_xpbar'+N]:document.getElementById('_xpbar'+N);
bA.blocks=blocks;
bA.N=N;
bA.w=w;
bA.h=h;
bA.speed=speed;
bA.ctr=0;
bA.count=count;
bA.action=action;
bA.togglePause=togglePause;
bA.showBar=function(){
this.bar.style.visibility="visible";
}
bA.hideBar=function(){
this.bar.style.visibility="hidden";
}
bA.tid=setInterval('startBar('+N+')',speed);
return bA;
}}

function startBar(bn){
var t=(ie)?document.all['blocks'+bn]:document.getElementById('blocks'+bn);
if(parseInt(t.style.left)+t.h+1-(t.blocks*t.h+t.blocks)>t.w){
t.style.left=-(t.h*2+1)+'px';
t.ctr++;
if(t.ctr>=t.count){
eval(t.action);
t.ctr=0;
}}else t.style.left=(parseInt(t.style.left)+t.h+1)+'px';
}

function togglePause(){
if(this.tid==0){
this.tid=setInterval('startBar('+this.N+')',this.speed);
}else{
clearInterval(this.tid);
this.tid=0;
}}

function togglePause(){
if(this.tid==0){
this.tid=setInterval('startBar('+this.N+')',this.speed);
}else{
clearInterval(this.tid);
this.tid=0;
}}