window.onload = function() {
var ua = navigator.userAgent.toLowerCase();
var isOpera = (ua.indexOf('opera')  > -1);
var isIE = (!isOpera && ua.indexOf('msie') > -1);
  if(isIE) {
    document.getElementById('left_menu').style.width = "178px"; 
    document.getElementById('newsletter').style.width = "178px";
    document.getElementById('banner').style.top = "315px";
    
    document.getElementById('news').style.width = "178px"; 
    document.getElementById('preventivo').style.width = "178px";
    document.getElementById('preventivo').style.top = "183px";
    document.getElementById('bbox_rate').style.top = "381px";
    document.getElementById('bbox_rate').style.width = "178px";
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}