// JavaScript Document
function getResAndLoadImage()
{
    breite=screen.width;
    hoehe=screen.height;

    //alert ('Hallo Frau Baisch, Ihre Auflösung betraegt ' + breite +' x ' + hoehe);


    //800 x 600 3.9%
    //1024 x 768 51.2%
    //1152 x 864 4.4%
    //1280 x 1024 32.3%
    //1600 x 1200


    if (breite <= 800 ){
      document.getElementsByTagName("body")[0].background ='graphic/index_800.jpg';

    } else if (breite > 800 && breite <= 1024 ){
      document.getElementsByTagName("body")[0].background ='graphic/index_1024.jpg';

    } else if (breite > 1024 && breite <= 1152 ){
      document.getElementsByTagName("body")[0].background ='graphic/index_1152.jpg';

    } else if (breite > 1152 && breite <= 1280 ){
      document.getElementsByTagName("body")[0].background ='graphic/index_1280.jpg';

    } else if (breite > 1280 && breite <= 1680 ){
      document.getElementsByTagName("body")[0].background ='graphic/index_1680.jpg';

    } else {
      document.getElementsByTagName("body")[0].background ='graphic/index_2000.jpg';
    }
}