function loadImages() {
if (document.getElementById) {  // DOM3 = IE5, NS6
document.getElementById('hidepage').style.visibility = 'hidden';
}
else {
if (document.layers) {  // Netscape 4
document.hidepage.visibility = 'hidden';
}
else {  // IE 4
document.all.hidepage.style.visibility = 'hidden';
      }
   }
}

function preloader(){

document.write('<div id="hidepage" style="position: absolute; left:0px; top:0px; background-color: #FFFFFF; layer-background-color: #FFFFFF; height: 100%; width: 100%; z-index:100; background-image: url(../img/interior/cont_fondo.gif); layer-background-image: url(../img/interior/cont_fondo.gif);">'+
               '<table width="100%" height="100%"><tr><td align="center" valign="middle"><img src="../img/interior/cargando.gif" border="0"><br><br></td></tr></table></div>');

}