// JavaScript Document

function toogleVisA(){
  document.getElementById("mainpic").style.overflow = 'visible';

 if(document.getElementById("box_ext_left").style.display= 'none'){
  document.getElementById("box_ext_center").style.display= 'none';
  document.getElementById("box_ext_right").style.display= 'none';
  document.getElementById("box_ext_left").style.display= 'block';
 
  toogleArrowU(document.getElementById("cNormal"));
    toogleArrowU(document.getElementById("cRight"));  
   toogleArrowD(document.getElementById("cLeft"));
 } 
 else {
  document.getElementById("box_ext_left").style.display= 'none';
 
          }
}
function toogleVisB(){
      document.getElementById("mainpic").style.overflow = 'visible';
 // alert('left');
 if(document.getElementById("box_ext_center").style.display= 'none'){
  document.getElementById("box_ext_left").style.display= 'none';
  document.getElementById("box_ext_right").style.display= 'none';
   document.getElementById("box_ext_center").style.display= 'block';
  
    toogleArrowU(document.getElementById("cLeft"));
    toogleArrowU(document.getElementById("cRight"));  
    toogleArrowD(document.getElementById("cNormal"));
 }
   else {
  document.getElementById("box_ext_center").style.display= 'none';
 
          }
}
function toogleArrowD(element){

   element.getElementsByTagName("h1")[0].getElementsByTagName("a")[0].style.backgroundImage= 'url(fileadmin/template/images/pfeil_runter.png)';
   element.getElementsByTagName("h1")[0].getElementsByTagName("a")[0].style.paddingRight = '20';
  

}
function toogleArrowU(element){

   element.getElementsByTagName("h1")[0].getElementsByTagName("a")[0].style.backgroundImage= 'url(fileadmin/template/images/pfeil_rechts.png)';
   element.getElementsByTagName("h1")[0].getElementsByTagName("a")[0].style.paddingRight = '16';
  

}
function toogleVisC(){
      document.getElementById("mainpic").style.overflow = 'visible';
 // alert('left');
 if(document.getElementById("box_ext_right").style.display= 'none')
  {  document.getElementById("box_ext_center").style.display= 'none';
  document.getElementById("box_ext_left").style.display= 'none';
  document.getElementById("box_ext_right").style.display= 'block';
    
  toogleArrowU(document.getElementById("cLeft"));
  toogleArrowU(document.getElementById("cNormal"));  
  toogleArrowD(document.getElementById("cRight"));
 }
  else {
  document.getElementById("box_ext_right").style.display= 'none';
  
         }
}
function hideAll(){
   
                          
  document.getElementById("mainpic").style.overflow = 'hidden';
   document.getElementById("box_ext_left").style.display= 'none';
  document.getElementById("box_ext_center").style.display= 'none';
  document.getElementById("box_ext_right").style.display= 'none';
     toogleArrowU(document.getElementById("cLeft"));
  toogleArrowU(document.getElementById("cNormal"));  
  toogleArrowU(document.getElementById("cRight"));
  
}          
function showBox1(element){
  document.getElementById("mainpic").style.overflow = 'visible';
  element.style.display = 'block';
   toogleArrowD(document.getElementById("cLeft"));
}
function showBox2(element){
  document.getElementById("mainpic").style.overflow = 'visible';
  element.style.display = 'block';
   toogleArrowD(document.getElementById("cNormal"));
}
function showBox3(element){
  document.getElementById("mainpic").style.overflow = 'visible';
  element.style.display = 'block';
   toogleArrowD(document.getElementById("cRight"));
}