function alertSize() {
  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 myWidth;
 // window.alert( 'Width = ' + myWidth );
 // window.alert( 'Height = ' + myHeight );
}

$(window).load(function() {
    $("div#makeMeScrollable").smoothDivScroll();
    $("div#makeMeScrollable").smoothDivScroll("option","autoScrollStep", 1);
         
    $("div#scroll_mouseover").live('mousemove', function (e) {
        mouse_x = e.pageX;
         mywidth = alertSize();
         // alert(mouse_x+" "+mywidth);
        if (mouse_x > (mywidth / 2))
        {
            step = (mouse_x - (mywidth / 2)) / 200;
            $("#makeMeScrollable").smoothDivScroll("option","autoScrollDirection","endlessloopleft");
            $("div#makeMeScrollable").smoothDivScroll("option","autoScrollStep",step);
            $("div#makeMeScrollable").smoothDivScroll("startAutoScroll");
        }
        else
        {
        step = (((mywidth / 2)-mouse_x) / 200)+1;
            $("#makeMeScrollable").smoothDivScroll("option","autoScrollDirection","endlessloopright");
            $("div#makeMeScrollable").smoothDivScroll("option","autoScrollStep", step);
            $("div#makeMeScrollable").smoothDivScroll("startAutoScroll");
        }
        
    });
    
    $("div#scroll_mouseover").live('mouseleave', function (e) {
        $("div#makeMeScrollable").smoothDivScroll("stopAutoScroll");
    });
});