o_blank = new Image();
o_press_on = new Image();
o_about_on = new Image();
o_residential_on= new Image();
o_commercial_on= new Image();
o_links_on= new Image();
o_contact_on= new Image();
o_home_on= new Image();
uc_blank= new Image();
uc_about= new Image();
uc_contact= new Image();
uc_links= new Image();


o_blank.src = "images/o_blank.gif";
o_press_on.src = "images/o_press.gif";
o_about_on.src = "images/o_about.gif";
o_residential_on.src = "images/o_residential.gif";
o_commercial_on.src = "images/o_commercial.gif";
o_links_on.src = "images/o_links.gif";
o_contact_on.src = "images/o_contact.gif";
o_home_on.src = "images/o_home.gif";

uc_blank.src="images/uc.gif";
uc_about.src="images/uc_about.gif";
uc_contact.src="images/uc_contact.gif";
uc_links.src="images/uc_links.gif";




function roll(sname,rname) {
sname.src = rname.src;
}