// -------------------------------------------------------------------
// --- FUNZIONI X ROLL-OVER PULSANTI TOOLBAR ---
// -------------------------------------------------------------------
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(Base_URL) {
	//alert(Base_URL + '  ' + document.images.length );
	if (document.images) {
		// Welcome //
		W_ita_over 		= newImage( Base_URL + "/graphics/w_but_ita-over.gif");
		W_eng_over		= newImage( Base_URL + "/graphics/w_but_eng-over.gif");
		// Toolbar //
		T_home_over 	= newImage( Base_URL + "/graphics/tool_home-over.gif");
		T_company_over 	= newImage( Base_URL + "/graphics/tool_company-over.gif");
		T_works_over	= newImage( Base_URL + "/graphics/tool_works-over.gif");
		T_news_over 	= newImage( Base_URL + "/graphics/tool_news-over.gif");
		T_clients_over 	= newImage( Base_URL + "/graphics/tool_clients-over.gif");
		T_contacts_over	= newImage( Base_URL + "/graphics/tool_contacts-over.gif");
		T_bbs_over		= newImage( Base_URL + "/graphics/tool_bbs-over.gif");
		
		preloadFlag = true;
	}
}
// -------------------------------------------------------------------