var d = document;
var winIE = (navigator.userAgent.indexOf("Opera")==-1 && (navigator.userAgent.indexOf('Firefox/')==-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;
}