div#login-wrap {position: absolute; display: none;}  
div#login-block {background: url('http://iucoz.ru/other/login-bg.png') no-repeat; width: 246px; height: 167px;}  
div#enter-button {width: 60px; height: 35px; background: url('http://iucoz.ru/other/button-enter.PNG') no-repeat; position: absolute; cursor:pointer; cursor:hand;}  
.login-form {width:180px; margin-left: 30px; padding-top: 15px;}  
.login-close {width: 14px; height: 13px; background: url('http://iucoz.ru/other/login-close.gif') no-repeat; cursor:pointer; cursor:hand; float: right;}  
input.loginField, #content input {height: 22px; color: #515151; line-height: 22px; font-size: 10pt; background: url('http://blog.ucoz.ru/img/input-bg.gif') repeat-x; border-top: 1px solid #838383; border-left: 1px solid #838383; border-right: 1px solid #d4d4d4; border-bottom: 1px solid #d4d4d4;}  
input.loginButton {width: 48px; height: 16px; background: url('http://iucoz.ru/other/button.gif') no-repeat; color: #ffffff; border: none; font-size: 7pt; padding-bottom: 2px; position: relative; top: 3px;}

<div id="enter-button" onclick="document.getElementById('login-wrap').style.display='block';"></div>  
<div id="login-wrap"><div id="login-block">  
<script type="text/javascript">  
sendFrm549077=function(){  
var o=document.getElementById('frmLg549077');  
var pos=_umlGetCoord(document.getElementById('frmLg549077'));  
document.body.insertBefore(document.getElementById('blk549077'),document.body.firstChild);  
with(document.getElementById('blk549077')){style.top=(pos['top'])+'px'; style.left=(pos['left'])+'px';style.width=o.offsetWidth;style.height=o.offsetHeight;style.display=''; innerHTML='<div align="left" style="padding:5px;"><div class="myWinLoad"></div></div>';}  
uz.util.Connect.setForm('frmLg549077');  
var cObj = uz.util.Connect.asyncRequest('POST','http://iucoz.ru/index/',callback);  
}  
</script>