//code for left nav mouseovers
var canMouseOut = true
function mouseOver(whichButton){
	
	if(document.images[whichButton].src.indexOf("_on.gif") == -1){
		document.images[whichButton].src = "images/" + whichButton + "_on.gif"
		canMouseOut = true
	} else {
		canMouseOut = false
	}	
}

function mouseOut(whichButton){
	//can't mouse out if page was active page
	if(canMouseOut){
		document.images[whichButton].src = "images/" + whichButton + ".gif"
	}
}