function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}
function changeImages() {
	changeImagesArray(changeImages.arguments);
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_navi01_over = newImage('image/navi01_over.gif');
		pre_navi02_over = newImage('image/navi02_over.gif');
		pre_navi03_over = newImage('image/navi03_over.gif');
		pre_navi04_over = newImage('image/navi04_over.gif');
		pre_navi05_over = newImage('image/navi05_over.gif');
		pre_bot01_over = newImage('image/bot01_over.gif');
		pre_bot02_over = newImage('image/bot02_over.gif');
		pre_bot03_over = newImage('image/bot03_over.gif');
		pre_bot04_over = newImage('image/bot04_over.gif');
		pre_bot05_over = newImage('image/bot05_over.gif');
		pre_bot06_over = newImage('image/bot06_over.gif');
		pre_bot07_over = newImage('image/bot07_over.gif');
		pre_app01_over = newImage('image/app01_over.gif');
		pre_app03_over = newImage('image/app03_over.gif');
		pre_app04_over = newImage('image/app04_over.gif');
		pre_app05_over = newImage('image/app05_over.gif');
		pre_te01_over = newImage('image/te01_over.gif');
		pre_te02_over = newImage('image/te02_over.gif');
		pre_te03_over = newImage('image/te03_over.gif');
		pre_te04_over = newImage('image/te04_over.gif');
		pre_te05_over = newImage('image/te05_over.gif');
		pre_te06_over = newImage('image/te06_over.gif');
		pre_te07_over = newImage('image/te07_over.gif');
		pre_te08_over = newImage('image/te08_over.gif');
		pre_side06_over = newImage('image/side06_over.gif');
		pre_side07_over = newImage('image/side07_over.gif');
		pre_side08_over = newImage('image/side08_over.gif');
		pre_side09_over = newImage('image/side09_over.gif');
		pre_side10_over = newImage('image/side10_over.gif');
		pre_side11_over = newImage('image/side11_over.gif');
		pre_side01_over = newImage('image/side01_over.gif');
		pre_side02_over = newImage('image/side02_over.gif');
		pre_side03_over = newImage('image/side03_over.gif');
		pre_log01_over = newImage('image/log01_over.gif');
		pre_log02_over = newImage('image/log02_over.gif');
		pre_log03_over = newImage('image/log03_over.gif');
		pre_log04_over = newImage('image/log04_over.gif');
		pre_log05_over = newImage('image/log05_over.gif');
		pre_log06_over = newImage('image/log06_over.gif');
		pre_log07_over = newImage('image/log07_over.gif');
		pre_log08_over = newImage('image/log08_over.gif');
		pre_log09_over = newImage('image/log09_over.gif');
		pre_log10_over = newImage('image/log10_over.gif');
		preloadFlag = true;
	}
}