<li class="login_title_right"></li>
</ul>
<div class="content login_content">
<ul class="login_blank"></ul>
<ul class="login_ul_1">
<li class="login_li_1"><span>Username</span></li>
<li class="login_li_2">
<input type="text" class="username" name="Username" id="Frm_Username">
</li>
</ul>
<ul class="login_blank"></ul>
<ul class="login_ul_1">
<li class="login_li_1"><span>Password</span></li>
<li class="login_li_2">
<input type="password" class="password" name="Password"  id="Frm_Password">

</li>
<li class="login_li_3">
<input class="login" type="submit"  id="LoginId"  value="Login"  onclick="dosubmit()">
</li>
</ul>

curl -b cookies.txt -c cookies.txt --data "Username=admin&Password=xxx123&Login=Login" [urlthatyour form sumbits]

curl --data "Username=admin&Password=xxx123&Login=Login" [url that your form submits]

// Enable HTTP POST
curl_setopt($ch, CURLOPT_POST, 1);

// Use SSL
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);

// Imitate classic browser's behavior - handle cookies
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

// Execute 1st request
$store = curl_exec($ch);

// Set file to download

// Execute 2nd request (file download)
$content = curl_exec($ch);

curl_close($ch);

?>`