/* Suzanne Golden basic javascript funtions */

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav_accessories_over = newImage("images/nav_accessories_over.jpg");
		nav_benches_over = newImage("images/nav_benches_over.jpg");
		nav_bookshelves_over = newImage("images/nav_bookshelves_over.jpg");
		nav_chairs_over = newImage("images/nav_chairs_over.jpg");
		nav_coffee_over = newImage("images/nav_coffee_over.jpg");
		nav_commodes_over = newImage("images/nav_commodes_over.jpg");
		nav_consoles_over = newImage("images/nav_consoles_over.jpg");
		nav_desks_over = newImage("images/nav_desks_over.jpg");
		nav_lighting_over = newImage("images/nav_lighting_over.jpg");
		nav_mirrors_over = newImage("images/nav_mirrors_over.jpg");
		nav_tables_over = newImage("images/nav_tables_over.jpg");
		nav_trunks_over = newImage("images/nav_trunks_over.jpg");
		nav_contact_over = newImage("images/nav_contact_over.jpg");
		nav_home_over = newImage("images/nav_home_over.jpg");
		nav_account_over = newImage("images/nav_account_over.jpg");
		nav_news_over = newImage("images/nav_news_over.jpg");
		nav_next_over = newImage("images/nav_next_over.gif");
		nav_previous_over = newImage("images/nav_previous_over.gif");
		preloadFlag = true;
	}
}

// window popup code
// Thanks to Caio Chassot, http://www.alistapart.com/articles/popuplinks/
// the functions in this file require the supplementary library lib.js

var _POPUP_FEATURES = '';

function raw_popup(url, target, features) {
    // pops up a window containing url optionally named target, optionally having features
    if (isUndefined(features)) features = _POPUP_FEATURES;
    if (isUndefined(target  )) target   = '_blank';
    var theWindow = window.open(url, target, features);
    theWindow.focus();
    return theWindow;
}

function link_popup(src, features) {
    // to be used in an html event handler as in: <a href="..." onclick="link_popup(this,...)" ...
    // pops up a window grabbing the url from the event source's href
    return raw_popup(src.getAttribute('href'), src.getAttribute('target') || '_blank', features);
}