//  SiGButtonSwap
//  den SiG-Logo-Knopf animieren
//  Aufruf-Beispiel:  <a href="PubWal10.htm" onmouseOver="SiGButtonOver('16')" onmouseOut="SiGButtonOut('16')" onClick="SiGButtonClick('16')"><img Name="SiGButton16" border="0 "width="18" height="18" src="../images/SiGButton_off.gif"></a>

var SiGButton = "SiGButton";
var path = "../images/"
var ext  = ".gif";
var on   = "_on";
var off  = "_off";
var here = "_here";


function SiGButtonOver(ButtonName)
{
  document[SiGButton+ButtonName].src    = path+SiGButton+on+ext;
}

function SiGButtonOut(ButtonName)
{
  document[SiGButton+ButtonName].src    = path+SiGButton+off+ext;
}

function SiGButtonClick(ButtonName)
{
  document[SiGButton+ButtonName].src    = path+SiGButton+here+ext;
}