var picArray = new Array('images/banner_bohlkeworld_tour.jpg','images/banner_bohlkeworld_bohlkeex.jpg','images/banner_bohlkeworld_timeline.jpg','images/banner_bohlkeworld_environm.jpg','images/banner_bohlkeworld_testim.jpg','images/banner_bohlkeworld_ourteam.jpg')

function ShowImage(picCode) {
document.getElementById('preview_img').src = picArray[picCode];
}
function HideImage() {
document.getElementById('preview_img').src = "images/content_bw_main.jpg";
}