<input class="loginField" type="text" name="user" value="" size="20" style="width:100px" maxlength="25" />

<input class="login" type="text" name="user" value="" size="20" style="width:100px" maxlength="25" />

<input class="loginField" type="password" name="password" size="20" style="width:100px" maxlength="15" />

<input class="pass" type="password" name="password" size="20" style="width:100px" maxlength="15" />

input.pass   
{   
background: url(http://i036.radikal.ru/0806/d4/010789ade8cd.gif) no-repeat;   
background-color: #fff;   
background-position: 0 50%;   
color: #000;   
padding-left: 18px;   
}   

input.login   
{   
background: url(http://i055.radikal.ru/0806/d0/584c3fe3b451.gif) no-repeat;   
background-color: #fff;   
background-position: 0 50%;   
color: #000;   
padding-left: 18px;   
}