function preload(bild)
{
	  images = new Array();
    images[0]="galerie/image001.jpg";
    images[1]="galerie/image002.jpg";
    images[2]="galerie/image003.jpg";
    images[3]="galerie/image004.jpg";
    images[4]="galerie/image005.jpg";
    images[5]="galerie/image006.jpg";
    images[6]="galerie/image007.jpg";
    images[7]="galerie/image008.jpg";

 
    document.getElementById("gal_img").src = images[bild];
     document.getElementById("gal_img").onload=show_image();
     
    
  }

function show_image()
{
	
	document.getElementById("pic_div").style.visibility = "visible";
}

function hide_image()
{
	document.getElementById("pic_div").style.visibility = "hidden";
	document.getElementById("gal_img").src = "";
}