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_ougon_sp03_over = newImage('/info/20090903_ougon_h//ougon_sp03-over.gif');
		pre_ougon_sp06_over = newImage('/info/20090903_ougon_h//ougon_sp06-over.gif');
		pre_ougon_sp07_over = newImage('/info/20090903_ougon_h//ougon_sp07-over.gif');
		pre_ougon_sp08_over = newImage('/info/20090903_ougon_h//ougon_sp08-over.gif');
		pre_ougon_sp09_over = newImage('/info/20090903_ougon_h//ougon_sp09-over.gif');
		pre_ougon_sp14_over = newImage('/info/20090903_ougon_h//ougon_sp14-over.gif');
		pre_ougon_sp18_over = newImage('20090907_ougon_h/ougon_sp18-over.gif');
		pre_ougon_sp22_over = newImage('/info/20090903_ougon_h//ougon_sp22-over.gif');
		pre_ougon_sp27_over = newImage('/info/20090903_ougon_h/ougon_sp27-over.gif');
		pre_ougon_sp30_over = newImage('/info/20090903_ougon_h//ougon_sp30-over.gif');
		preloadFlag = true;
	}
}