/*
 * [a] Stijn Van Minnebruggen
 * [c] Do Not Fold
 * [s] www.donotfold.be
 *
*/

var orient = 'h';

function checkOrient() {
	
	// get img w and h
		var imgW = $('bg_'+orient).width;
		var imgH = $('bg_'+orient).height;
	
	// get page size
		var pageS = getPageSize();
		var pageW = pageS[0];
		var pageH = pageS[1];
	
	// check orientation
		if(this.orient == 'h') {
			if(imgH < pageH) setOrient('v');
		} else {
			if(imgW < pageW) setOrient('h')
		}
	
	// check container height
		//var ch = $('content').getHeight();
		//if (ch > pageH-100) $('content').style.overflow = 'scroll';
		//else $('content').style.overflow = 'auto';
	
}

function setOrient(o) {
	orient = o;
	if(orient == 'h') {
		$('bg_h').show();
		$('bg_v').hide();
	} else {
		$('bg_v').show();
		$('bg_h').hide();
	}
}
Event.observe(window, 'load', function(){
	//checkOrient();
	//Event.observe(window, 'resize', checkOrient, false);
}, false);










//
// 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;
}

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.com
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = window.innerWidth + window.scrollMaxX;
		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;
	
	// console.log(self.innerWidth);
	// console.log(document.documentElement.clientWidth);

	if (self.innerHeight) {	// all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth; 
		} else {
			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;
	}

	// console.log("xScroll " + xScroll)
	// console.log("windowWidth " + windowWidth)

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

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