function basename (path, suffix) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Ash Searle (http://hexmen.com/blog/)
    // +   improved by: Lincoln Ramsay
    // +   improved by: djmix
    // *     example 1: basename('/www/site/home.htm', '.htm');
    // *     returns 1: 'home'
 
    var b = path.replace(/^.*[\/\\]/g, '');
    
    if (typeof(suffix) == 'string' && b.substr(b.length-suffix.length) == suffix) {
        b = b.substr(0, b.length-suffix.length);
    }
    
    return b;
}
function dirname (path) {
    // http://kevin.vanzonneveld.net
    // +   original by: Ozh
    // +   improved by: XoraX (http://www.xorax.info)
    // *     example 1: dirname('/etc/passwd');
    // *     returns 1: '/etc'
    // *     example 2: dirname('c:/Temp/x');
    // *     returns 2: 'c:/Temp'
    // *     example 3: dirname('/dir/test/');
    // *     returns 3: '/dir'
    
    return path.replace(/\\/g,'/').replace(/\/[^\/]*\/?$/, '');
}
function preloadImages (array_images) {
    var cache = [];
    for (var i = array_images.length; i--;) {
	var cacheImage = document.createElement('img');
	cacheImage.src = array_images[i];
	cache.push(cacheImage);
    }
    return (cache);
}