Hello World

<input type="checkbox" id="id_chk1" class="chkbox" value="1" />Check 1<br/>
    <input type="checkbox" id="id_chk2" class="chkbox" value="2" />Check 2<br/>
    <input type="checkbox" id="id_chk3" class="chkbox" value="3" />Check 3<br/>
    <input type="checkbox" id="id_chk4" class="chkbox" value="4" />Check 4<br/>
    <input type="checkbox" id="id_chk5" class="chkbox" value="5" />Check 5<br/>
    <input type="checkbox" id="id_chk6" class="chkbox" value="6" />Check 6<br/>
    <input type="checkbox" id="id_chk7" class="chkbox" value="7" />Check 7<br/>

    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
    <script type="text/javascript">
        var lastChecked = null;

        $(document).ready(function () {
            $('.chkbox').click(function (event) {
                if (!lastChecked) {
                    lastChecked = this;
                    return;
                }

                if (event.shiftKey) {
                    var start = $('.chkbox').index(this);
                    var end = $('.chkbox').index(lastChecked);

                    for (i = Math.min(start, end); i <= Math.max(start, end); i++) {
                        $('.chkbox')[i].checked = lastChecked.checked;
                    }
                }

                lastChecked = this;
            });
        });
    </script>


<style>
	#selectable .ui-selecting { background: #85AEF9; }
	#selectable .ui-selected { background: #065EFE; color: white; }
	#selectable { list-style-type: none; margin: 0; padding: 0; width: 110px; }
	#selectable li { margin: 3px; padding-left: 0.4em; padding-bottom: 1.5em; padding-top: 0em; font-size: 1.2em; height: 6px; }
</style>

<script type="text/javascript">
	$(function () {
	    $("#selectable").selectable();
	});
</script>

<ol id="selectable">
	<li class="ui-widget-content">Unknown</li>
	<li class="ui-widget-content">SDTV</li>
	<li class="ui-widget-content">DVD</li>
	<li class="ui-widget-content">HDTV</li>
	<li class="ui-widget-content">WEBDL</li>
	<li class="ui-widget-content">Bluray720p</li>
	<li class="ui-widget-content">Bluray1080p</li>
</ol>