if (document.images) {

      img1off = new Image();     
      img1off.src = "../bilder/home/img1off.gif"; 
    
      img1on = new Image();     
      img1on.src = "../bilder/home/img1on.gif"; 

      img2off = new Image();     
      img2off.src = "../bilder/home/img2off.gif"; 
    
      img2on = new Image();     
      img2on.src = "../bilder/home/img2on.gif"; 
      
      img3off = new Image();     
      img3off.src = "../bilder/home/img3off.gif"; 
    
      img3on = new Image();     
      img3on.src = "../bilder/home/img3on.gif"; 
      
      img4off = new Image();     
      img4off.src = "../bilder/home/img4off.gif"; 
    
      img4on = new Image();     
      img4on.src = "../bilder/home/img4on.gif"; 
      
      img5off = new Image();     
      img5off.src = "../bilder/home/img5off.gif"; 
    
      img5on = new Image();     
      img5on.src = "../bilder/home/img5on.gif"; 
      
      img6off = new Image();     
      img6off.src = "../bilder/home/img6off.gif"; 
    
      img6on = new Image();     
      img6on.src = "../bilder/home/img6on.gif"; 
      
      img7off = new Image();     
      img7off.src = "../bilder/home/img7off.gif"; 
    
      img7on = new Image();     
      img7on.src = "../bilder/home/img7on.gif"; 
 
    }

function imgOff(imgName) {
    if (document.images) {
      document[imgName].src = eval(imgName + "off.src");
    }
}

function imgOn(imgName) {
    if (document.images) {
      document[imgName].src = eval(imgName + "on.src");
    }
}