if (document.images) { 

r1= new Image(130,33); 
r1.src="images/nav_home_off.gif"; 
r2= new Image(130,32); 
r2.src="images/nav_about_off.gif"; 
r3= new Image(130,34); 
r3.src="images/nav_services_off.gif"; 
r4= new Image(130,34); 
r4.src="images/nav_clients_off.gif"; 
r5= new Image(130,34); 
r5.src="images/nav_media_off.gif"; 
r6= new Image(130,34); 
r6.src="images/nav_analysis_off.gif"; 
r7= new Image(130,32); 
r7.src="images/nav_contact_off.gif"; 
r8= new Image(130,32); 
r8.src="images/nav_webcasts_off.gif"; 


//

rr1= new Image(130,33); 
rr1.src="images/nav_home_over.gif"; 
rr2= new Image(130,32); 
rr2.src="images/nav_about_over.gif"; 
rr3= new Image(130,34); 
rr3.src="images/nav_services_over.gif"; 
rr4= new Image(130,34); 
rr4.src="images/nav_clients_over.gif"; 
rr5= new Image(130,34); 
rr5.src="images/nav_media_over.gif"; 
rr6= new Image(130,34); 
rr6.src="images/nav_analysis_over.gif"; 
rr7= new Image(130,32); 
rr7.src="images/nav_contact_over.gif"; 
rr8= new Image(130,32); 
rr8.src="images/nav_webcasts_over.gif"; 

}


function changeImage(row,s) {

var h;

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

if (document.images) {

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

}

}