<!--


browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
else browserVer = "2";

function start_up()
{
 var objekt = document.getElementById("link_table_" + page + "_left");
 objekt.style.backgroundImage = "url(images/btn_down_left.jpg)";
 objekt = document.getElementById("link_table_" + page + "_center");
 objekt.style.backgroundImage = "url(images/btn_down_center.jpg)";
 objekt = document.getElementById("link_table_" + page + "_right");
 objekt.style.backgroundImage = "url(images/btn_down_right.jpg)";
}


//preload images:
/*if (browserVer == 1) {
aleft1 = new Image(19,40);
aright1 = new Image(19,40);
acenter1 = new Image(11,40);
aleft2 = new Image(19,40);
aright2 = new Image(19,40);
acenter2 = new Image(11,40);

aleft1.src = "images/btn_center";
aright1 = new Image(19,40);
acenter1 = new Image(11,40);
aleft2 = new Image(19,40);
aright2 = new Image(19,40);
acenter2 = new Image(11,40);

a1.src = "a1.jpg";
a2 = new Image(107,36);
a2.src = "a2.jpg";
}

//image swapping function:
function hiLite(imgDocID, imgObjName, comment) {
if (browserVer == 1) {
document.images[imgDocID].src = eval(imgObjName + ".src");
window.status = comment; return true;
}}
                 */
function btn_hide (btn)
{
 if (btn != page) {
  var objekt = document.getElementById("link_table_" + btn + "_left");
  objekt.style.backgroundImage = "none";
  objekt = document.getElementById("link_table_" + btn + "_center");
  objekt.style.backgroundImage = "none";
  objekt = document.getElementById("link_table_" + btn + "_right");
  objekt.style.backgroundImage = "none";
 }
}

function btn_show (btn)
{
 var objekt = document.getElementById("link_table_" + btn + "_left");
 objekt.style.backgroundImage = "url(images/btn_down_left.jpg)";
 objekt = document.getElementById("link_table_" + btn + "_center");
 objekt.style.backgroundImage = "url(images/btn_down_center.jpg)";
 objekt = document.getElementById("link_table_" + btn + "_right");
 objekt.style.backgroundImage = "url(images/btn_down_right.jpg)";
}
//-->