var imageFiles_em_81 = new Array();
imageFiles_em_81['0'] = new Array ('_images/em_INICIO__.gif', '_images/em_INICIO__Mouseover.gif');
imageFiles_em_81['1'] = new Array ('_images/em_EVENTOS__.gif', '_images/em_EVENTOS__Mouseover.gif');
imageFiles_em_81['2'] = new Array ('_images/em_SERVICIOS__.gif', '_images/em_SERVICIOS__Mouseover.gif');
imageFiles_em_81['3'] = new Array ('_images/em_CONTACTO__.gif', '_images/em_CONTACTO__Mouseover.gif');
imageFiles_em_81['4'] = new Array ('_images/em_PAGOS__.gif', '_images/em_PAGOS__Mouseover.gif');
imageFiles_em_81['5'] = new Array ('_images/em_MAPA__.gif', '_images/em_MAPA__Mouseover.gif');
imageFiles_em_81['6'] = new Array ('_images/em_REPRESENTANTES__.gif', '_images/em_REPRESENTANTES__Mouseover.gif');
imageFiles_em_81['7'] = new Array ('_images/em_EMAIL__.gif', '_images/em_EMAIL__Mouseover.gif');

function image_on_em_81 (position) {
   var doc = eval("document.imageem_81" + position);
   doc.src = imageFiles_em_81[position][1];
}

function image_off_em_81 (position) {
   var doc = eval("document.imageem_81" + position);
   doc.src = imageFiles_em_81[position][0];
}