oferta_on = new Image();
	oferta_on.src = "images/OFERTAb.jpg"
	oferta_off = new Image();
	oferta_off.src = "images/OFERTA.jpg"

	firma_on = new Image();
	firma_on.src = "images/FIRMAb.jpg"
	firma_off = new Image();
	firma_off.src = "images/FIRMA.jpg"

	portfolio_on = new Image();
	portfolio_on.src = "images/PORTFOLIOb.jpg"
	portfolio_off = new Image();
	portfolio_off.src = "images/PORTFOLIO.jpg"

	kontakt_on = new Image();
	kontakt_on.src = "images/KONTAKTb.jpg"
	kontakt_off = new Image();
	kontakt_off.src = "images/KONTAKT.jpg"

function select(imgName) {

	imgOn = eval(imgName + "_on.src");
	document[imgName].src = imgOn;
	window.status = imgName;
	setTimeout("erase()",3000);
	}

function unselect(imgName) {

	imgOff = eval(imgName + "_off.src");
	document[imgName].src = imgOff;
	}

function erase() {   

	window.status="";
	}