I) Add Coustom 404 Errpage - top

Add Coustom 404 Page To Squid Blogger Template.

Go To Blogger >> Settings

And Click On "Search Profermence" and Now Click Edit On "errors and rederects"

Add Followinmg Code here

<div id="search-form-feed">
    <form action="/search" onsubmit="return updateScript();">
        <input name="q" type="text" value="Type And Hit Enter..." id="feed-q-input" onkeyup="resetField();" onfocus="this.value='';"/>
    </form>
    <div id="search-result-container"></div>
    <div id="search-result-loader">Loading...</div>
</div>
<script type="text/javascript">
//<![CDATA[
var searchFormConfig = {
    url: "http://squid-cbtblogger.blogspot.com/",
    numPost: 9999,
    summaryPost: true,
    summaryLength: 400,
    resultTitle: "Search Result",
    noResult: "No result",
    resultThumbnail: true,
    thumbSize: 40,
    fallbackThumb: "http://reader-download.googlecode.com/svn/trunk/images/no-image-72x72.png"
};
//]]>
</script>
<script src='https://googledrive.com/host/0B4c1L29MmfGuaDViejZyS0liazg' type='text/javascript'> </script>

How To Install 404 Error Page To Blogger - http://youtu.be/ftSKtM1zd_o