function showHide(vThis) {
    vParent = vThis.parentNode;
    vSibling = vParent.nextSibling;
    navHeight = document.getElementById("nav");
	twisty = document.getElementById("twisty");
	dropForm = document.getElementById("dropForm");
    while (vSibling.nodeType == 3) {   // Fix for Mozilla/FireFox Empty Space becomes a TextNode or Something
       // vSibling = vSibling.nextSibling;
    };

    if (vSibling.style.display == "none") {
       // vThis.src = "/images/twisty_down.gif";
		twisty.style.background = "transparent url(/images/twisty_down.gif) no-repeat bottom right";
      // vThis.alt = "Hide";
		vSibling.style.display = "block";
		navHeight.style.height = "200px";
		dropForm.style.display = "block";

    } else {
			vSibling.style.display = "none";
    //   vThis.src = "/images/twisty.gif";
    //   vThis.alt = "Show";
		navHeight.style.height = "26px";
		twisty.style.background = "transparent url(/images/twisty.gif) no-repeat bottom right";
		dropForm.style.display = "none";
    }
    return;
}