x01 = new Image();
x01.src = "images/ambiente_01.jpg";
x02 = new Image();
x02.src = "images/ambiente_02.jpg";
x03 = new Image();
x03.src = "images/ambiente_03.jpg";
x04 = new Image();
x04.src = "images/ambiente_04.jpg";
x05 = new Image();
x05.src = "images/ambiente_05.jpg";
x06 = new Image();
x06.src = "images/ambiente_06.jpg";

function ambiente(ImageName, ImageObjektName)
{
    document.images[ImageName].src = eval(ImageObjektName + ".src")
}