function BilderVorladen()
{
    document.Vorladen = new Array();

    if(document.images)
    {
        for(var i = 0; i < BilderVorladen.arguments.length; i++)
        {
            document.Vorladen[i] = new Image();
            document.Vorladen[i].src = BilderVorladen.arguments[i];
        }
    }
}


function swap(imageClass)
{
    var image = document.getElementsByTagName('img');
    for(var i=0; i<image.length; i++)
    {
        if(image[i].className.match(imageClass))
        {
            image[i].onmouseover = function()
            {
                if(this.src.match(/__2/))
                {
                    this.src = this.src.replace(/__2/,"__3");
                }
            }
            image[i].onmouseout = function()
            {
                if(this.src.match(/__3/))
                {
                    this.src = this.src.replace(/__3/,"__2");
                }
            }
            image[i].onclick = function()
            {
                if(this.src.match(/(\.jpg)/i))
                {
                    this.src = this.src.replace(RegExp.$1,'_thumb_b.gif');
                }
                else
                {
                    this.src = this.src.replace(/_\w+\.gif/i,'.jpg')
                }
            }
        }
    }
}