function swapgallery(prevelem,folder) {
	var srcraw = prevelem.src
	var slashpos = srcraw.lastIndexOf("index.html")
	var newsrc = srcraw.substr(slashpos)
	if (folder == 0) {
		var picURL = "gallery/igres" + newsrc
		var width = "width=480"
		var height = "height=620"
		var scrolling = "scrollbars=no"
	}
	if (folder == 1) {
		var picURL = "gallery/agres" + newsrc
		var width = "width=683"
		var height = "height=520"
		var scrolling = "scrollbars=no"
	}
	var windowChrome = width + "," + height + "," + scrolling
	window.open(picURL,'_blank',windowChrome)
}

function highlight(img) {
	img.style.borderColor = "#f90"
}

function offimg(img) {
	img.style.borderColor = "#ccc"
}