function findBrowserSize(type){
// determine browser size
var winW, winH
if (parseInt(navigator.appVersion)>3) {
 if (navigator.appName=="Netscape") {
  winW = window.innerWidth;
  winH = window.innerHeight;
 }
 if (navigator.appName.indexOf("Microsoft")!=-1) {
  winW = document.body.offsetWidth;
  winH = document.body.offsetHeight;
 }
}
if(winW==null){winW=800;winH=450}

return{width: winW, height: winH}

}