img_names = new Array("home", "newsletter", "links", "meetings", "contest", "gallery", "tips", "articles", "sponsors", "forums");
img_dir = "buttons/";

function preLoadImgs()
{	
	for(var loop = 0; loop < img_names.length; loop++)
	{
		var new_img = new Image();
		new_img.src = img_dir + img_names[loop] + "1.gif";
	}
}

function swap_main(imgNum, action)
{
	var swapImage = eval("document." + img_names[imgNum]);
	swapImage.src = (action == 0) ? img_dir + img_names[imgNum] + "0.gif" : img_dir + img_names[imgNum] + "1.gif";
}