var imagenes = new Array();
imagenes[0] = "invimagen1.jpg";
imagenes[1] = "invimagen2.jpg";
imagenes[2] = "invimagen3.jpg";
imagenes[3] = "invimagen4.jpg";
imagenes[4] = "invimagen5.jpg";
imagenes[5] = "invimagen6.jpg";
imagenes[6] = "invimagen7.jpg";
imagenes[7] = "invimagen8.jpg";
imagenes[8] = "invimagen9.jpg";
imagenes[9] = "invimagen10.jpg";
imagenes[10] = "invimagen11.jpg";

document.write ('<table cellpadding="0" cellspacing="0" border="0"><tr>');

var posicion = 0;
while (posicion < 4)
	{
	var index = Math.floor(Math.random() * imagenes.length);
	if (imagenes[index]=='') continue;
	laImagen = '<td width=\"189\" bgcolor=\"#172C7F\" background=\"/imagenesnew/rand/'+imagenes[index]+'\" width=\"189\" height=\"96\" border=0 alt=\"\"><img src=\"/imagenesnew/rand/invhome' + (posicion+1) + '.gif\"></td>';
	document.write (laImagen);
	imagenes[index]='';
	posicion++;
	}

document.write('</tr></table>');