Event.observe(window, "load", function() {

	window.setInterval(main_resize, 10);
	Event.observe(window, "resize", main_resize);

	main_resize();
	$('main_center').style.display = "block";
});
	
	
	
function main_resize() {
	
	var innerHeight = getInnerWindowHeight();
	var innerWidth = getInnerWindowWidth();
	var marginLeft = ((innerWidth - 1018) / 2);
	$('main_center').style.left = Math.round(marginLeft) + 'px';
}
	
	

function getInnerWindowHeight() {
	
	var y;
	if (self.innerHeight) 
	{
		y = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight)
	{
		y = document.documentElement.clientHeight;
	}
	else if (document.body) 
	{
		y = document.body.clientHeight;
	}
	
	return(y);
}

function getInnerWindowWidth() {
	
	var x;
	if (self.innerWidth) 
	{
		x = self.innerWidth;
	}
	else if (document.documentElement && document.documentElement.clientWidth)
	{
		x = document.documentElement.clientWidth;
	}
	else if (document.body) 
	{
		x = document.body.clientWidth;
	}
	
	return(x);
}