if (document.images) {
	var menu_up = new Array();
	menu_up[0] =  new Image(); menu_up[0].src  = 'images/header/menu-service-up.gif';

	var menu_over = new Array();
	menu_over[0]  = new Image(); menu_over[0].src  = 'images/header/menu-service-over.gif';
}

function changepic(imgTagName,imgFileName) {
	if (document.images) {
		if (document.images[imgTagName]) {
			document.images[imgTagName].src = imgFileName;
		}
	}
}

function movepic(img_name,img_src) {
document[img_name].src=img_src;
}