//
// javascript/mainMenu.js
//
function window_onscroll()
{
	var el;
	var x;

	el = document.getElementById('header');
	// scrolling offset calculation via www.quirksmode.org
	if(self.pageXOffset)
	{
		x = self.pageXOffset;
	}
	else if(document.documentElement && document.documentElement.scrollTop)
	{
		x = document.documentElement.scrollLeft;
	}
	else if(document.body)
	{
		x = document.body.scrollLeft;
	}
	el.style.left = (0 - x) + "px";
}
window.onscroll=window_onscroll;
window.onresize=window_onscroll; // required for IE7