function maxWindow() {
  window.moveTo(0,0);
  window.resizeTo(screen.availWidth, screen.availHeight);
 }

 function setWidthCookie(scrWidth) {
  maxWindow();
  var cookieName = "screenWidth";
  var valueStart = document.cookie.indexOf(cookieName);
  var valueEnd = document.cookie.indexOf(";",valueStart);
  if (valueEnd = -1) {
   var jScreenWidth = document.cookie.slice(valueStart + 12);
  } else {
   var jScreenWidth = document.cookie.slice(valueStart + 12, valueEnd + 1);
  }
  if (jScreenWidth != scrWidth) {
   var expDate = new Date ();
   expDate.setTime (expDate.getTime() + (5 * 365 * 24 * 3600 * 1000)); 
   var cookieValue = scrWidth;
   var thisCookie = cookieName + "=" + cookieValue + "; expires=" + expDate.toUTCString();
   document.cookie = thisCookie;
   var fileURL = window.location;
   location.replace(fileURL);
  }
 }