function open_window(Screen)
    {
    window.open (Screen,"","resize='no',width=1024,height=728,left=0,top=0");
    }
    function frame_Page(pageName)
    {
    window.parent.document.getElementById('frmHallBooking').src=pageName;
    }
    function change_color(backcolor,bandcolor)
    {
        document .body.style.backgroundImage=("url('images/"+backcolor+"')");
        document .body.style .backgroundRepeat ="repeat-x";
        document.getElementById ('band').style .backgroundColor =bandcolor;
        document.getElementById ('banner').style .backgroundColor =bandcolor;
    } 
    function Download()
    {
     window.open ("Downloading.aspx","","")
    }