var oLastBtn=0;
   function RaiseButton(){
      window.event.cancelBubble=true;
      oBtn = window.event.srcElement;
      var bChosen = false;
      if(oLastBtn && oLastBtn != oBtn){
         HideButton();
      }
      if(oBtn.buttonType){
		if(oBtn.className == "LeftNavDown") {
			oBtn.className = oBtn.buttonType + "Down";
		} else {				
			oBtn.className = oBtn.buttonType + "Up";
         oLastBtn=oBtn;
		}
      }
      else {
      oLastBtn = 0;
      }
   }
   function DepressButton(){
      window.event.cancelBubble=true;
      oBtn = window.event.srcElement;
      if(oBtn.buttonType){
		if (oBtn.className == "LeftNavDown") {
		 oBtn.className = oBtn.buttonType + "ChosenDown";
		} else {
         oBtn.className = oBtn.buttonType + "Chosen";
        }
      } 
   }
   function HideButton(){
      if ((oBtn.className == "LeftNavDown") || (oBtn.className == "LeftNavChosenDown")) {
		oBtn.className = oBtn.className;
	  } else {
      oLastBtn.className = oLastBtn.buttonType + "Off";
      }
   }