if (document.images) { 
r1= new Image(70,21); 
r1.src="images/topnav_home_off.jpg"; 
r2= new Image(85,21); 
r2.src="images/topnav_about_off.jpg"; 
r3= new Image(97,21);
r3.src="images/topnav_contact_off.jpg"; 

r4= new Image(101,38); 
r4.src="images/nav_services_off.jpg"; 
r5= new Image(132,38); 
r5.src="images/nav_hints_off.jpg"; 
r6= new Image(181,38);
r6.src="images/nav_testimonials_off.jpg"; 
r7= new Image(151,38);
r7.src="images/nav_questions_off.jpg"; 


//

rr1= new Image(70,21); 
rr1.src="images/topnav_home_on.jpg"; 
rr2= new Image(85,21); 
rr2.src="images/topnav_about_on.jpg"; 
rr3= new Image(97,21);
rr3.src="images/topnav_contact_on.jpg"; 

rr4= new Image(101,38); 
rr4.src="images/nav_services_on.jpg"; 
rr5= new Image(132,38); 
rr5.src="images/nav_hints_on.jpg"; 
rr6= new Image(181,38);
rr6.src="images/nav_testimonials_on.jpg"; 
rr7= new Image(151,38);
rr7.src="images/nav_questions_on.jpg"; 

}


function changeImage(row,s) {

var h;

h= (s==1)? "r":"";

if (document.images) {

document.images[row].src = eval(h+row + ".src");

}

}