var PrStyle;
function ChStyle(obj, NwStyle, NrStyle)
{
	PrStyle = obj.className;
	obj.className = NwStyle;
	
	PrSelection = obj;
	return;
}

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) {
		navi01_over = newImage('images/content_navi_01_over.gif');
		navi02_over = newImage('images/content_navi_02_over.gif');
		navi03_over = newImage('images/content_navi_03_over.gif');
		navi04_over = newImage('images/content_navi_04_over.gif');
		navi05_over = newImage('images/content_navi_05_over.gif');
		navi06_over = newImage('images/content_navi_06_over.gif');
		navi07_over = newImage('images/content_navi_07_over.gif');
		navi08_over = newImage('images/content_navi_08_over.gif');
		navi09_over = newImage('images/content_navi_09_over.gif');
		navi10_over = newImage('images/content_navi_10_over.gif');
		navi11_over = newImage('images/nukebox_03_over.gif');
		navi12_over = newImage('images/nukebox_04_over.gif');
		navi13_over = newImage('images/nukebox_05_over.gif');
		navi14_over = newImage('images/nukebox_06_over.gif');
		preloadFlag = true;
	}
}