principalOff = new Image
acercaOff = new Image
productosOff = new Image
cultivosOff = new Image
distribuidoresOff = new Image
contactosOff = new Image
investigacionOff = new Image
nuevaslineasOff = new Image

principalOver = new Image
acercaOver = new Image
productosOver = new Image
cultivosOver = new Image
distribuidoresOver = new Image
contactosOver = new Image
investigacionOver = new Image
nuevaslineasOver = new Image

principalOff.src = "images/menu/principal_off.gif"
acercaOff.src = "images/menu/acerca_off.gif"
productosOff.src = "images/menu/productos_off.gif"
cultivosOff.src = "images/menu/cultivos_off.gif"
distribuidoresOff.src = "images/menu/distribuidores_off.gif"
contactosOff.src = "images/menu/contactos_off.gif"
investigacionOff.src = "images/menu/investigacion_off.gif"
nuevaslineasOff.src = "images/menu/nuevaslineas_off.gif"

principalOver.src = "images/menu/principal_over.gif"
acercaOver.src = "images/menu/acerca_over.gif"
productosOver.src = "images/menu/productos_over.gif"
cultivosOver.src = "images/menu/cultivos_over.gif"
distribuidoresOver.src = "images/menu/distribuidores_over.gif"
contactosOver.src = "images/menu/contactos_over.gif"
investigacionOver.src = "images/menu/investigacion_over.gif"
nuevaslineasOver.src = "images/menu/nuevaslineas_over.gif"

function imgOver(thisImg) {
	document[thisImg].src = "images/menu/" + thisImg + "_over.gif"
}

function imgOut(thisImg) {
	document[thisImg].src = "images/menu/" + thisImg + "_off.gif"
}