image01= new Image()
image01.src="images/home.gif"
image02= new Image()
image02.src="images/home_hover.gif"

image03= new Image()
image03.src="images/about.gif"
image04= new Image()
image04.src="images/about_hover.gif"

image05= new Image()
image05.src="images/tour.gif"
image06= new Image()
image06.src="images/tour_hover.gif"

image07= new Image()
image07.src="images/special.gif"
image08= new Image()
image08.src="images/special_hover.gif"

image09= new Image()
image09.src="images/contact.gif"
image10= new Image()
image10.src="images/contact_hover.gif"

function rollover(imagename, newsrc){
document.images[imagename].src=newsrc.src
}