if (document.images) {	

	// preload header btn states
	imgArray = new Array("members","publications","training","contact_us");
	for (x = 0; x < imgArray.length; x++) {
		eval(imgArray[x] + '_off = new Image()');
		eval(imgArray[x] + '_off.src ="http://www.williams-edelstein.net/images/nav/' + imgArray[x] + '.gif"');
		eval(imgArray[x] + '_on = new Image()');
		eval(imgArray[x] + '_on.src = "http://www.williams-edelstein.net/images/nav/' + imgArray[x] + '_on.gif"');
	}
}

// ---- rollover swapImage ----
function swapImage( img_name, img_state ) {
	document[img_name].src = eval(img_name + '_' + img_state + ".src" );
}


/* --- mailto link function (to hide emails from SEO spiders) --- */
function mailtoLinks(emailRecip, emailHost, emailExt) { 
	document.write('<a href="' + 'mail' + 'to:' + emailRecip + '@' + emailHost + '.' + emailExt + '">');
}