var oLastBtn=0; function RaiseButton(){ window.event.cancelBubble=true; oBtn 
= window.event.srcElement; var bChosen = false; if(oLastBtn && oLastBtn != oBtn){ 
HideButton(); } if(oBtn.buttonType){ oBtn.className = oBtn.buttonType + "down"; 
oLastBtn=oBtn; } else { oLastBtn = 0; } } function DepressButton(){ window.event.cancelBubble=true; 
oBtn = window.event.srcElement; if(oBtn.buttonType){ oBtn.className = oBtn.buttonType 
+ "up"; } } function HideButton(){ if ((oLastBtn.buttonType == "LeftNavChosen") 
|| (oLastBtn.buttonType == "LeftNavSubChosen") || (oLastBtn.buttonType == "appNavChosen") 
|| (oLastBtn.buttonType == "appNavSubChosen")) { oLastBtn.className = oLastBtn.buttonType; 
} else { oLastBtn.className = oLastBtn.buttonType + "Off"; } }