var ie = /msie/i.test(navigator.userAgent);      
var ieBox = ie && (document.compatMode == null || document.compatMode == "BackCompat");      

function checkSize() {        
	 var canvasEl = ieBox ? document.body : document.documentElement;        
	 var w = window.innerWidth || canvasEl.clientWidth;        
	 var h = window.innerHeight || canvasEl.clientHeight;   
	
	 if (w > 1024) {
		 w = 1024;
	 }   
	   
	 document.getElementById("body").style.width = Math.floor(w) + "px";         
	 document.getElementById("body").style.height = Math.max(0, h - 0) + "px";      
}      

window.onload = checkSize;   
window.onresize = checkSize;