function swapImage(y,z) {
x = y
btName = z
x.src = "images/buttons/" + z + "_f2.jpg"
return(false);
}

function swapImg(y,z) {
x = y
btName = z
x.src = "images/buttons/" + btName 
return(false);
}

function backImage(y,z) {
x = y
btName = z
x.src = "images/buttons/" + z + ".jpg"
return(false);
}

function swapImageHotel(y,z) {
x = document.hImg
btName = z
x.src = "images/hotels/" + z + ".jpg"
}