function showHide(a,b,c){
       
  if (b.style.visibility=="hidden"){ 
    a.style.height="294px";
    c.style.height="294px";
    b.style.visibility="visible";
    document.getElementById("bteinaus").style.top="205";
    document.getElementById("bteinaus").style.left="724px";  
    
    }
     else {  
      a.style.height="30px";
      c.style.height="30px";
      b.style.visibility="hidden";
      document.getElementById("bteinaus").style.top="471";
      document.getElementById("bteinaus").style.left="724px"; 
      }
      
    }
    
    
    function toggleZindex(a,b){
    
    if (a.style.zIndex!="5"){
      a.style.zIndex="5";
      b.style.visibility="hidden";
      document.getElementById("btplus_back").style.visibility="visible"; 
      
      }
    else {
      a.style.zIndex="0";
      b.style.visibility="visible";
      document.getElementById("btplus_back").style.visibility="hidden"; 
      }
  
        
    
      
    }