if (document.images) {
home_over= new Image
home_over.src = 'images/home_over.jpg'
home_out= new Image
home_out.src= 'images/home_out.jpg'
about_over= new Image
about_over.src = 'images/about_over.jpg'
about_out= new Image
about_out.src= 'images/about_out.jpg'
contact_over= new Image
contact_over.src = 'images/contact_over.jpg'
contact_out= new Image
contact_out.src= 'images/contact_out.jpg'
events_over= new Image
events_over.src = 'images/events_over.jpg'
events_out= new Image
events_out.src= 'images/events_out.jpg'
map_over= new Image
map_over.src = 'images/map_over.jpg'
map_out= new Image
map_out.src= 'images/map_out.jpg'
pro_over= new Image
pro_over.src = 'images/pro_over.jpg'
pro_out= new Image
pro_out.src= 'images/pro_out.jpg'

}

else {
home_over= " "
home_out= " "
document.home = " "
about_over= " "
about_out= " "
document.about = " "
contact_over= " "
contact_out= " "
document.contact = " "
events_over= " "
events_out= " "
document.events = " "
map_over= " "
map_out= " "
document.map = " "
pro_over= " "
pro_out= " "
document.pro = " "
}