if (document.images) { 
r1= new Image(93,26); 
r1.src="images/nav_aboutus_off.gif"; 
r2= new Image(92,26); 
r2.src="images/nav_products_off.gif"; 
r3= new Image(91,26);
r3.src="images/nav_tools_off.gif"; 
r4= new Image(91,26); 
r4.src="images/nav_apply_off.gif"; 
r5= new Image(98,26); 
r5.src="images/nav_contactus_off.gif"; 




//

rr1= new Image(93,26); 
rr1.src="images/nav_aboutus_on.gif"; 
rr2= new Image(92,26); 
rr2.src="images/nav_products_on.gif"; 
rr3= new Image(91,26);
rr3.src="images/nav_tools_on.gif"; 
rr4= new Image(91,26); 
rr4.src="images/nav_apply_on.gif"; 
rr5= new Image(98,26); 
rr5.src="images/nav_contactus_on.gif"; 




}


function changeImage(row,s) {

var h;

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

if (document.images) {

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

}

}