// This script loads images for hover buttons and defines rollover actions
if (document.images)  {

	var ntcomoff = new Image() ; ntcomoff.src = "buttons/button_d_02.gif";
	var ntcomshv = new Image() ; ntcomshv.src = "buttons/button_O_02.gif";

	var ntavcoff = new Image() ; ntavcoff.src = "buttons/button_d_04.gif";
	var ntavcshv = new Image() ; ntavcshv.src = "buttons/button_o_04.gif";
	
	var ntoioff = new Image() ; ntoioff.src = "buttons/button_d_06.gif";
	var ntoishv = new Image() ; ntoishv.src = "buttons/button_o_06.gif";	
	
	var ntfeoff = new Image() ; ntfeoff.src = "buttons/button_d_08.gif";
	var ntfeshv = new Image() ; ntfeshv.src = "buttons/button_o_08.gif";

	var ntmdoff = new Image() ; ntmdoff.src = "buttons/button_d_10.gif";
	var ntmdshv = new Image() ; ntmdshv.src = "buttons/button_o_10.gif";

	var ntgpoff = new Image() ; ntgpoff.src = "buttons/button_d_12.gif";
	var ntgpshv = new Image() ; ntgpshv.src = "buttons/button_o_12.gif";

	var ntffoff = new Image() ; ntffoff.src = "buttons/funds_d_14.gif";
	var ntffshv = new Image() ; ntffshv.src = "buttons/funds_o_14.gif";
	
	var ntsfoff = new Image() ; ntsfoff.src = "buttons/funds_d_16.gif";
	var ntsfshv = new Image() ; ntsfshv.src = "buttons/funds_o_16.gif";	
	
	var nttfoff = new Image() ; nttfoff.src = "buttons/funds_d_18.gif";
	var nttfshv = new Image() ; nttfshv.src = "buttons/funds_o_18.gif";	
	
	var ntfofoff = new Image() ; ntfofoff.src = "buttons/funds_d_20.gif";
	var ntfofshv = new Image() ; ntfofshv.src = "buttons/funds_o_20.gif";	
	
	}

// flip images and show popup menu

function roll(imgName,newImg,currElem) {
	if(document.images) {
		document[imgName].src = eval(newImg + ".src");
	}
	dom = document.getElementById(currElem).style;
	state = dom.visibility;
		if (state == "visible") {
			dom.visibility = "hidden"
		}
		else {
			dom.visibility = "visible"
		} 
}	
	
// this script hides/shows layers based on user event

function toggle(currElem) {
	dom = document.getElementById(currElem).style;
	state = dom.visibility;
	if (state == "visible") {
		dom.visibility = "hidden"
	}
	else {
		dom.visibility = "visible"
	} 
}

// toggleVis script
// this script hides/shows layers based on user event

function toggleVis(currElem) {
	dom = document.getElementById(currElem).style;
	state = dom.visibility;
	if (state == "visible") {
		dom.visibility = "hidden"
	}
	else {
		dom.visibility = "visible"
	} 
}
	
// flip images on mouse over only
function hover(imgName,newImg) {
	if(document.images) {
		document[imgName].src = eval(newImg + ".src")
	}
}