//<!--

// image rollover pre-loaders

var home_0 = new Image(160,20); home_0.src="images_dev/menu/home_0.gif"
var home_1 = new Image(160,20); home_1.src="images_dev/menu/home_1.gif"

var publications_0 = new Image(160,20); publications_0.src="images_dev/menu/publications_0.gif"
var publications_1 = new Image(160,20); publications_1.src="images_dev/menu/publications_1.gif"

var logo_0 = new Image(160,40); logo_0.src="images_dev/menu/logo_0.gif"
var logo_1 = new Image(160,40); logo_1.src="images_dev/menu/logo_1.gif"

var posters_0 = new Image(160,20); posters_0.src="images_dev/menu/posters_0.gif"
var posters_1 = new Image(160,20); posters_1.src="images_dev/menu/posters_1.gif"

var printing_0 = new Image(160,20); printing_0.src="images_dev/menu/printing_0.gif"
var printing_1 = new Image(160,20); printing_1.src="images_dev/menu/printing_1.gif"

var requirements_0 = new Image(160,40); requirements_0.src="images_dev/menu/requirements_0.gif"
var requirements_1 = new Image(160,40); requirements_1.src="images_dev/menu/requirements_1.gif"

var contact_0 = new Image(160,20); contact_0.src="images_dev/menu/contact_0.gif"
var contact_1 = new Image(160,20); contact_1.src="images_dev/menu/contact_1.gif"

var terms_0 = new Image(160,20); terms_0.src="images_dev/menu/terms_0.gif"
var terms_1 = new Image(160,20); terms_1.src="images_dev/menu/terms_1.gif"


var popupwin = null;
var ary = new Array();
var first = true;
var previous_url;

var screenHeight = Math.round(screen.availHeight * 0.90)	

function windowOpen(url,openHeight) {		
	if (openHeight > screenHeight) {
		openHeight = screenHeight;
	}
	var winString = "height=" + openHeight + ",width=500,scrollbars=1,status=0,top=20,left=100";
	if (first) {
		popupwin = window.open( url, "GopherGraphics", winString);
		popupwin.focus();
		first = false;
	} else {
		if ( popupwin != null && !popupwin.closed && previous_url == url ) { popupwin.focus(); }
		else {
			if (popupwin.closed) {
				popupwin = window.open( url, "GopherGraphics", winString);
				popupwin.focus();
			} else {
				popupwin.location = url;
				popupwin.focus();
			}
		}	
	}
	previous_url = url ;
}


//-->