function GetWindowSize() {

  var myWidth = 0, myHeight = 0;
  
  if( typeof( window.innerWidth ) == 'number' )
  {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
    window.getElementById("tableBase").style.height=myHeight;
  } 
  else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) )
  {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
    document.getElementById("tableBase").style.height=myHeight;
  } 
  else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) )
  {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
    document.getElementById("tableBase").style.height=myHeight;
  }
}