Código PHP:
<?php
echo '<script type="text/javascript">';
echo 'function mostrardiv() {div = document.getElementById("flotante");div.style.display = "";}';
echo 'function cerrar() {div = document.getElementById("flotante");div.style.display="none";}</script>';
echo '<div id="mostrarDiv"><a href="javascript:mostrardiv();">ver</a></div>';
echo '<div id="flotante" style="display:none;"><div style="background:#79add6; border-style:outset; left:285px; top:83px; width:300px; height:289px;z-index:1;">';
echo '<h3><p align="center">Formulario de solicitud de dominio</h3>
<form id="form1" name="form1" method="post" action="">
<label>Nombre<span class="Estilo1">.</span>
<input align="left" type="text" name="nombre" /> </label> <br /><br />
<label>Apellidos<input align="left" type="text" name="apellidos" /></label><br /><br />
<label>Telefono<input align="left" type="text" name="telefono" maxlength="9" /></label><br /><br />
<label>Email <span class="Estilo1">. .. </span><input align="left" type="text" name="email" /></label><br /><br />
<label>pruebas<input name="pruebas" type="text" size="9" align="left" value="" /></label><select name="menu1" onchange="MM_jumpMenu("parent",this,0)">
<option>prueba</option>
<option>prueba1</option>
<option>prueba2</option>
<option>prueba2</option>
<option>prueba4</option>
<option>prueba5</option>
</select>
<br /><br />
<input align="left" type="submit" name="enviar" value="Enviar" /></form>';
echo '<div align="right"><a href="javascript:cerrar();"> cerrar</a><br> </div></div>';
?>