/* 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

function showAlternativeImage(element) {
    images = element.getElementsByTagName('img');
    if (element.className == 'box_container nur_bild' && typeof images[0] == 'object' && typeof images[1] == 'object') {
       images[0].style.display='none';   
       images[1].style.display='block';
    }
}

function hideAlternativeImage(element) {
   images = element.getElementsByTagName('img');
   if (element.className == 'box_container nur_bild' && typeof images[0] == 'object' && typeof images[1] == 'object') {
      images[0].style.display='block';  
      images[1].style.display='none';
   }
}