var imageFiles_15c_1 = new Array();
imageFiles_15c_1['0'] = new Array ('_images/15c_About_Us.gif', '_images/15c_About_UsMouseover.gif');
imageFiles_15c_1['1'] = new Array ('_images/15c_Distribution.gif', '_images/15c_DistributionMouseover.gif');
imageFiles_15c_1['2'] = new Array ('_images/15c_Placing_Ads.gif', '_images/15c_Placing_AdsMouseover.gif');

function image_on_15c_1 (position) {
   var doc = eval("document.image15c_1" + position);
   doc.src = imageFiles_15c_1[position][1];
}

function image_off_15c_1 (position) {
   var doc = eval("document.image15c_1" + position);
   doc.src = imageFiles_15c_1[position][0];
}