var h = null;
var image = null;
var index  = null;

function initBg() {
	h = document.getElementsByTagName('html')[0];
	image = document.getElementById("bg"); 
	
	// adjust on first time load
	if (image != null) { 
		index = (h.clientWidth -1920) / 2; 

		if (index < -474)
			index = -474;

		image.style.left = index + 'px'; 
		image.style.visibility = 'visible';
		//image.style.display = 'block'; //removed due to printerfriendly
	} 


}



onresize = function() {
	if (image != null) { 
		index = (h.clientWidth -1920) / 2; 

		if (index < -474)
			index = -474;

		image.style.left = index + 'px'; 
	} 
};