var oLastBtn=0;

//function ms_lch(lname, picimage) {
//		 document[lname].src=picimage;
//}


function RaiseButton(){
	if (window.event) {
		window.event.cancelBubble=true;
		oBtn = window.event.srcElement;
		var bChosen = false;
		if(oLastBtn && oLastBtn != oBtn){
			HideButton();
		}
		if(oBtn.buttontype){
			oBtn.className = oBtn.buttontype + "Up";
			oLastBtn=oBtn;
			}
		else {
		oLastBtn = 0;
		}
	}
}

function DepressButton(){
	if (window.event) {
//		ms_lch(pic1,'gifs/triangle_blue.gif'); 
		window.event.cancelBubble=true;
		oBtn = window.event.srcElement;
		if(oBtn.buttontype){
			oBtn.className = oBtn.buttontype + "Down";
		}
	}
}

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";
	}
	
}