<!--RollOver Script-->
 if(navigator.appVersion.charAt(0) >= "3") {
      var nav = new Array();

nav['btn1'] = new Image();  nav['btn1'].src = "images/btn1.gif";
nav['btn1_over'] = new Image();  nav['btn1_over'].src = "images/btn1_over.gif";
nav['btn2'] = new Image();  nav['btn2'].src = "images/btn2.gif";
nav['btn2_over'] = new Image();  nav['btn2_over'].src = "images/btn2_over.gif";
nav['btn3'] = new Image();  nav['btn3'].src = "images/btn3.gif";
nav['btn3_over'] = new Image();  nav['btn3_over'].src = "images/btn3_over.gif";
}



      function nav_over(a,b) {
        if(navigator.appVersion.charAt(0) >= "3") {
        document.images[a].src = nav[b].src;
        } else { 
		}
		}
      function nav_out(a,b) {
        document.images[a].src = nav[b].src;
		}