入力にテキストを入力するかどうかに関係なく、ダイアログ ボックスが開きます。値が見つからない場合にのみ開く必要があります: fiddle = http://jsfiddle.net/tzxS2/
code/css/js: フォームで動作しないようです:
<form id="dacform" method='get' action='dac' onsubmit="return check_domain_input()" accept-charset='utf-8'>
<input name='domain' type="text" style="font-size:15px;" class="searchbox"/>
<select style="background:#f8f8f8; margin-left:4px; font-size:15px;" class="selectlist slight" id="selectdomain" name="tld">
<option value=''>( all )</option>
<option value="co.uk">co.uk</option>
<option value="me.uk">me.uk</option>
<option value="org.uk">org.uk</option>
<option value="com">com</option>
</select>
<input onclick="check_domain_input()" class="btn grey bbig" name="search" type="submit" value="Search" style="width:59px; margin-left:7px; font-size:15px;" />
</form><br />
Our domain registration system is highly automated so we register your domain names fast and secure.
<div id="dialog" title="Attention!" style="display:none">
Please enter a domain name to search for.
</div>
<div onclick="check_domain_input()">Click</div>
<div id="dialog" title="Attention!" style="display:none">
Please enter a domain name to search for.
</div>
<script>
function check_domain_input()
{
$( "#dialog" ).dialog(); // Shows the new alert box.
var domain_val = document.getElementsByName('domain');
if (domain_val[0].value.length > 0)
{
return true;
}
$( "#dialog" ).dialog();
return false;
}
</script>