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) {
		top_menu01_over = newImage(themes_image_root_dir + "top_menu01-over.gif");
		top_menu02_over = newImage(themes_image_root_dir + "top_menu02-over.gif");
		top_menu03_over = newImage(themes_image_root_dir + "top_menu03-over.gif");
		top_menu04_over = newImage(themes_image_root_dir + "top_menu04-over.gif");
		top_menu05_over = newImage(themes_image_root_dir + "top_menu05-over.gif");
		top_menu06_over = newImage(themes_image_root_dir + "top_menu06-over.gif");
		top_menu07_over = newImage(themes_image_root_dir + "top_menu07-over.gif");
		top_menu08_over = newImage(themes_image_root_dir + "top_menu08-over.gif");
		header_button01_over = newImage(themes_image_root_dir + "header_button01-over.gif");
		header_button02_over = newImage(themes_image_root_dir + "header_button02-over.gif");
		header_button03_over = newImage(themes_image_root_dir + "header_button03-over.gif");
		header_button04_over = newImage(themes_image_root_dir + "header_button04-over.gif");
		header_button05_over = newImage(themes_image_root_dir + "header_button05-over.gif");
		header_button06_over = newImage(themes_image_root_dir + "header_button06-over.gif");
		header_button07_over = newImage(themes_image_root_dir + "header_button07-over.gif");
		header_button08_over = newImage(themes_image_root_dir + "header_button08-over.gif");
		left_menu01_over = newImage(themes_image_root_dir + "left_menu01-over.gif");
		left_menu02_over = newImage(themes_image_root_dir + "left_menu02-over.gif");
		left_menu03_over = newImage(themes_image_root_dir + "left_menu03-over.gif");
		left_menu04_over = newImage(themes_image_root_dir + "left_menu04-over.gif");
		left_menu05_over = newImage(themes_image_root_dir + "left_menu05-over.gif");
		footer_button05_over = newImage(themes_image_root_dir + "footer_button05-over.gif");
		footer_button06_over = newImage(themes_image_root_dir + "footer_button06-over.gif");
		footer_button07_over = newImage(themes_image_root_dir + "footer_button07-over.gif");
		footer_button08_over = newImage(themes_image_root_dir + "footer_button08-over.gif");
		preloadFlag = true;
	}
}



var marked_row = new Array;
var themes_image_root_dir = '/images/system_icon/';

function hideSubMenus(id,imageId,cookieId){

	if(this.document.getElementById( id).style.display=='none'){
		this.document.getElementById( id).style.display='inline';

		Set_Cookie(cookieId,'true',30,'/','','');
		var show = Get_Cookie(cookieId);
		document[imageId].src = themes_image_root_dir + 'hide_icon01.gif';
	}else{
		this.document.getElementById(  id).style.display='none';

		Set_Cookie(cookieId,'false',30,'/','','');
		var show = Get_Cookie(cookieId);
		document[imageId].src = themes_image_root_dir + 'hide_icon02.gif';

	}
}