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

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

function changeImages() {
	changeImagesArray(changeImages.arguments);
}

function toggleImages() {
	for (var i=0; i<toggleImages.arguments.length; i+=2) {
		if (selected == toggleImages.arguments[i])      changeImagesArray(toggleImages.arguments[i+1]);
	}
}

var selected = '';
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		zoysia_drop_1_over = newImage("images/zoysia_drop_1-over.gif");
		zoysia_drop_1_active = newImage("images/zoysia_drop_1-active.gif");
		zoysia_drop_1a_over = newImage("images/zoysia_drop_1a-over.gif");
		zoysia_drop_1a_sel = newImage("images/zoysia_drop_1a-sel.gif");
		zoysia_drop_1a_active_b = newImage("images/zoysia_drop_1a-active-b.gif");
		bermuda_drop_1_over = newImage("images/bermuda_drop_1-over.gif");
		bermuda_drop_1_active = newImage("images/bermuda_drop_1-active.gif");
		bermuda_drop_1a_over = newImage("images/bermuda_drop_1a-over.gif");
		zoysia_drop_2_active = newImage("images/zoysia_drop_2-active.gif");
		zoysia_drop_2_over = newImage("images/zoysia_drop_2-over.gif");
		zoysia_drop_2a_over = newImage("images/zoysia_drop_2a-over.gif");
		zoysia_drop_2a_sel = newImage("images/zoysia_drop_2a-sel.gif");
		bermuda_drop_2_over = newImage("images/bermuda_drop_2-over.gif");
		bermuda_drop_2_active = newImage("images/bermuda_drop_2-active.gif");
		bermuda_drop_2a_over = newImage("images/bermuda_drop_2a-over.gif");
		zoysia_drop_3_over = newImage("images/zoysia_drop_3-over.gif");
		zoysia_drop_3_active = newImage("images/zoysia_drop_3-active.gif");
		zoysia_drop_3a_over = newImage("images/zoysia_drop_3-over.gif");
		zoysia_drop_3a_sel = newImage("images/zoysia_drop_3-sel.gif");
		bermuda_drop_3_over = newImage("images/bermuda_drop_3-over.gif");
		bermuda_drop_3_active = newImage("images/bermuda_drop_3-active.gif");
		bermuda_drop_3a_over = newImage("images/bermuda_drop_3a-over.gif");
		preloadFlag = true;
	}
}
function open_window(url,winname,features){
mywin = window.open(url,winname,features);
mywin.focus();
return false;
}