var isIE = (navigator.appName == "Microsoft Internet Explorer") ? true : false;
var tempScreen = (window.innerWidth) ? window.innerWidth : document.documentElement.clientWidth;

function setLeftMargin(){	
	var tempId = document.getElementById('page');
	var tempPage = 940;
	if(tempScreen){
		var tempDiff = (tempPage > tempScreen) ? 0 : ((tempScreen - tempPage) / 2);
		var tempHPage = document.getElementById('page').clientHeight;
		var tempHScreen = (window.innerHeight) ? window.innerHeight : document.documentElement.clientHeight;
		
		var ffTempH = (tempHPage > tempHScreen) ? 0 : 18;
		
		var ffTempLeft = (isIE) ? 0 : ffTempH;
		var newSpacer = tempDiff;
		if(tempId.style.left)
			 tempId.style.left = ""+newSpacer+"px";
		else
			if(tempId.left)
				tempId.left = ""+newSpacer+"px";
	}
}

window.onresize = function(){
	compareScreen = (window.innerWidth) ? window.innerWidth : document.documentElement.innerWidth;
	if(compareScreen != tempScreen)
		setLeftMargin();
}