var oLastBtn=0;


function RaiseButton(){
	window.event.cancelBubble=true;
	oBtn = window.event.srcElement;
	var bChosen = false;
	if(oLastBtn && oLastBtn != oBtn){
		HideButton();
	}
	if(oBtn.id == 'HomeBtn'){
	HomeSpan.className = 'LeftNavUp';
	}
	if(oBtn.buttonType){
		if (oBtn.buttonType == "LeftNavChosen") {
		oBtn.className = "LeftNavUp";
		}
		else {
		oBtn.className = oBtn.buttonType + "Up"; 
		}
		oLastBtn=oBtn;
	}
	else
		oLastBtn = 0;
}


function DepressButton(){
	window.event.cancelBubble=true;
	oBtn = window.event.srcElement;
	if(oBtn.buttonType){
		oBtn.className = oBtn.buttonType + "Down"; 
		if (oBtn.className == "LeftNavChosenDown") {
		oBtn.className = "LeftNavDown";
		}
	}
}

function HideButton(){
	if (oLastBtn.buttonType == "LeftNavChosen") {
		oLastBtn.className = "LeftNavChosen";
	}
	else {
	oLastBtn.className = oLastBtn.buttonType + "Off";
	if(document.all("HomeSpan")){HomeSpan.className = "LeftNavOff";}
	}
}