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

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

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		index_10_ImageMap_01_over = newImage("images/index_10-ImageMap_01_over.gif")
		index_11_ImageMap_02_over = newImage("images/index_11-ImageMap_02_over.gif")
		index_12_ImageMap_03_over = newImage("images/index_12-ImageMap_03_over.gif")
		index_13_ImageMap_04_over = newImage("images/index_13-ImageMap_04_over.gif")
		index_14_ImageMap_05_over = newImage("images/index_14-ImageMap_05_over.gif")
		preloadFlag = true
	}
}