var home_off = "images/triangle_off.gif";
var home_on = "images/triangle_on.gif";
var services_off = "images/triangle_off.gif";
var services_on = "images/triangle_on.gif";
var contact_off = "images/triangle_off.gif";
var contact_on = "images/triangle_on.gif";
var remote_off = "images/triangle_off.gif";
var remote_on = "images/triangle_on.gif";
var dell_off = "images/triangle_off.gif";
var dell_on = "images/triangle_on.gif";

function activate(imgName) {
	document.images[imgName].src = eval( imgName + "_on" );
}

function deactivate(imgName) {
	document.images[imgName].src = eval( imgName + "_off" );
}