var d = document; 
var winIE = (navigator.userAgent.indexOf("Opera")==-1 && (d.getElementById && d.documentElement.behaviorUrns)) ? true : false; 

function bodySize(){ 
if(winIE && d.documentElement.clientWidth) { 
sObj = d.getElementsByTagName("body")[0].style; 
sObj.width = (d.documentElement.clientWidth<1000) ? "1000px" : "100%"; 
} 
} 

function init(){ 
if(winIE) { bodySize(); } 
} 
onload = init; 
if(winIE) { onresize = bodySize; }