window.onresize = function(){
	set_bottom;
}
function set_bottom()
{
  var size = getPageSize();
  var myval=Math.floor(parseInt(parseInt(size[0] - 972)/2));
  
  document.getElementById('bottom').style.top=parseInt(size[1])+'px';
  //document.getElementById('bottom').style.left = Math.floor(parseInt(parseInt(size[0] - 972)/2))+'px';
  document.getElementById('bottom').style.width = '960px';
  
  document.getElementById('large_container').style.height = parseInt(size[1]-200)+'px';
  document.getElementById('main').style.left = '20px';
  document.getElementById('main').style.width = parseInt(size[0]-Math.floor(parseInt(parseInt(size[0] - 972)/2)+10)-20)+'px';
  
}


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;
}