//
// Determine window width / height
//

function windowWidth()
{
  if(typeof(window.innerWidth) == 'number') {
    //Non-IE
    return(window.innerWidth);
  } else if(document.documentElement && document.documentElement.clientWidth) {
    //IE 6+ in 'standards compliant mode'
    return(document.documentElement.clientWidth);
  } else if(document.body && document.body.clientWidth) {
    //IE 4 compatible
    return(document.body.clientWidth);
  }
}

function windowHeight()
{
  if(typeof(window.innerHeight) == 'number') {
    //Non-IE
    return(window.innerHeight);
  } else if(document.documentElement && document.documentElement.clientHeight) {
    //IE 6+ in 'standards compliant mode'
    return(document.documentElement.clientHeight);
  } else if(document.body && document.body.clientHeight) {
    //IE 4 compatible
    return(document.body.clientHeight);
  }
}