<script type="text/javascript">
function getWindowSize() {
    var myWidth =  0 , myHeight =  0 ;
    if( typeof( window.innerWidth ) == 'number' ) {
        //Non-IE
        myWidth = window.innerWidth;
        myHeight = window.innerHeight;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE  6 + in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
        myHeight = document.documentElement.clientHeight;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        //IE  4  compatible
        myWidth = document.body.clientWidth;
        myHeight = document.body.clientHeight;
    }
    return {"height":myHeight, "width":myWidth};
}
</script>