var imageFiles_538_1 = new Array();
imageFiles_538_1['0'] = new Array ('_images/538_Demographics.gif', '_images/538_DemographicsMouseover.gif');
imageFiles_538_1['1'] = new Array ('_images/538_Great_Information.gif', '_images/538_Great_InformationMouseover.gif');

function image_on_538_1 (position) {
   var doc = eval("document.image538_1" + position);
   doc.src = imageFiles_538_1[position][1];
}

function image_off_538_1 (position) {
   var doc = eval("document.image538_1" + position);
   doc.src = imageFiles_538_1[position][0];
}