if (document.images) {
    var image_array = new Array();
    
    // path to the directory with images
    var path = 'inc/img/';
    
    // enumeration of the "active" images
    image_array[0] = path + "results_on2.jpg";
    image_array[1] = path + "about_on2.jpg";
    
    var preload_image = new Array();
    
    for (var i = 0; i < image_array.length; i++) {
        preload_image[i] = new Image();
        preload_image[i].src = image_array[i];
    }
}

function rollover(name, filename){
    var fullpath = 'inc/img/' + filename;
    document.images[name].src = fullpath;
}

function hideToggle(divID){
    var item = document.getElementById(divID);
    if (item) {
		if (item.className == 'hidden'){
			item.className = 'unhidden';
		}
		else if (item.className == 'unhidden') {
			item.className = 'hidden';
		}
    }
}

function moreLess(spanID){
	var item = document.getElementById(spanID);
	if (item.innerHTML == '[more]'){
		item.innerHTML = '[less]';
	}
	else if (item.textContent == '[less]'){
		item.innerHTML = '[more]';
	}
}