Insert Auto Read More Code into Bloggers Template

I just found a very easy way to insert auto read more code into bloggers template........here we go.....
Expandable post or popularly known as “read more” is a feature that make your blog shows only a part of your posts on index pages i.e. home, labels and archive pages. At the end of each preview there will be a link to the post page, usually attached to the phrase “read more”.

Blogger’s own read more -the jump break, can be classified as conventional read more

HOW IT WORK?
Login to your Blogger account.
Go to Dashboard > Design > Edit HTML.
Back up your template.
Check the  Expand Widget Templates check box on top right of the HTML window.
In the code window, look for </head> line.
Add the Read More code below right after that line.

<!-- Auto read more script Start -->
<script type='text/javascript'>
var thumbnail_mode = "yes"; //yes -with thumbnail, no -no thumbnail
summary_noimg = 430; //summary length when no image
summary_img = 340; //summary length when with image
img_thumb_height = 200;
img_thumb_width = 200;
</script>
<script type='text/javascript'>
//<![CDATA[
function removeHtmlTag(strx,chop){
    if(strx.indexOf("<")!=-1)
    {
        var s = strx.split("<");
        for(var i=0;i<s.length;i++){
            if(s[i].indexOf(">")!=-1){
                s[i] = s[i].substring(s[i].indexOf(">")+1,s[i].length);
            }
        }
        strx =  s.join("");
    }
    chop = (chop < strx.length-1) ? chop : strx.length-2;
    while(strx.charAt(chop-1)!=' ' && strx.indexOf(' ',chop)!=-1) chop++;
    strx = strx.substring(0,chop-1);
    return strx+'...';
}

function createSummaryAndThumb(pID){
    var div = document.getElementById(pID);
    var imgtag = "";
    var img = div.getElementsByTagName("img");
    var summ = summary_noimg;
        if(thumbnail_mode == "yes") {
    if(img.length>=1) {   
        imgtag = '<span style="float:left; padding:0px 10px 5px 0px;"><img src="'+img[0].src+'" width="'+img_thumb_width+'px" height="'+img_thumb_height+'px"/></span>';
        summ = summary_img;
    }
    }
    var summary = imgtag + '<div>' + removeHtmlTag(div.innerHTML,summ) + '</div>';
    div.innerHTML = summary;
}
//]]>
</script>
<!-- Auto read more script End -->

After that, find this line: <data:post.body/>
Replace the line with this code:

<!-- Auto read more Start -->
<!-- http://www.BloggerSentral.com -->
<b:if cond='data:blog.pageType == &quot;item&quot;'>
<data:post.body/>
<b:else/>
<b:if cond='data:blog.pageType == &quot;static_page&quot;'>
<data:post.body/>
<b:else/>
<div expr:id='&quot;summary&quot; + data:post.id'><data:post.body/></div>
<script type='text/javascript'> createSummaryAndThumb(&quot;summary<data:post.id/>&quot;);
</script>
<a class='more' expr:href='data:post.url'>Read more ...</a>
</b:if>
</b:if>
<!-- Auto read more End -->

Click Preview. If it works, then click Save Template.