$(document).ready(function() {
$("img.rollover").hover(
 function()
 {
  this.src = this.src.replace("-off","-on");
 },
 function()
 {
  this.src = this.src.replace("-on","-off");
 }
);
});

/*
$img_array1 ="http://www.destinfloridawebcams.com/navarre/navimage.jpg";
function changeImage1(){
$("#imgholder1").hide();
$("#imgholder1").attr("src",$img_array1 + '?rand=' + Math.random()).show();
window.setTimeout("changeImage1()",8000);
}

$(function(){
changeImage1();
});
*/