<form id="formUspa" name="formUspa" method="post" action="">
<label>Area clienti :
<label>UserId</label>
<input name="UserId" type="text" id="UserId" value="UserId" value="Cerca nel Sito..." onfocus="this.value=''" onblur="if(this.value == '') {this.value = this.defaultValue; }"/>
<label>Password</label>
<input name="Password" type="password" id="Password" value="Password" value="Cerca nel Sito..." onfocus="this.value=''" onblur="if(this.value == '') {this.value = this.defaultValue; }" />
</form>
ecco !