var imageFiles_em_3 = new Array();
imageFiles_em_3['0'] = new Array ('_images/em_INICIO__.gif', '_images/em_INICIO__Mouseover.gif');
imageFiles_em_3['1'] = new Array ('_images/em_EVENTOS__.gif', '_images/em_EVENTOS__Mouseover.gif');
imageFiles_em_3['2'] = new Array ('_images/em_SERVICIOS__.gif', '_images/em_SERVICIOS__Mouseover.gif');
imageFiles_em_3['3'] = new Array ('_images/em_CONTACTO__.gif', '_images/em_CONTACTO__Mouseover.gif');
imageFiles_em_3['4'] = new Array ('_images/em_PAGOS__.gif', '_images/em_PAGOS__Mouseover.gif');
imageFiles_em_3['5'] = new Array ('_images/em_MAPA__.gif', '_images/em_MAPA__Mouseover.gif');
imageFiles_em_3['6'] = new Array ('_images/em_REPRESENTANTES__.gif', '_images/em_REPRESENTANTES__Mouseover.gif');
imageFiles_em_3['7'] = new Array ('_images/em_EMAIL__.gif', '_images/em_EMAIL__Mouseover.gif');

function image_on_em_3 (position) {
   var doc = eval("document.imageem_3" + position);
   doc.src = imageFiles_em_3[position][1];
}

function image_off_em_3 (position) {
   var doc = eval("document.imageem_3" + position);
   doc.src = imageFiles_em_3[position][0];
}