Showing Attachment Preview and related record detail by passing attachment id in salesforce.com

Hi,

Here in the following example i am using one custom component ,visualforce page and an extension.Here the custom component is used to display preview of attachment by getting the id from visualforce page where it is included.In this component i am using "Object" ,"embed" html tags to show preview of attachment.

Component Code:
===============

<apex:component >
<apex:attribute name="height" type="String" description="TODO: Describe me"/>
<apex:attribute name="width" type="String" description="TODO: Describe me"/>
<apex:attribute name="value" type="String" description="TODO: Describe me"/>
<object data="/servlet/servlet.FileDownload?file={!value}" type="application/pdf" width="{!width}" height="{!height}">
 <embed src="/servlet/servlet.FileDownload?file={!value}" width="{!width}" height="{!height}"/>
</object >
</apex:component>

Visualforce Page:

=============

<apex:page standardcontroller="Attachment" extensions="Attachradiocls1" sidebar="false">

    <h1 style="padding:10px;width:100%;float:left; font-size:24px; color:#015ba7;">ABC Company</h1>

    <table cellpadding="0" cellspacing="0">

        <tr>

            <td style="width: 283px; vertical-align:top; background:#CCC;border-right: #F0F0F0 2px solid;">

                <div style="margin:20px;">

                <h1>Contact Info</h1>

                <table>

                    <tr>

                        <td>

                            Contact Name:

                        </td>

                        <td>

                            {!contobj.Name}

                        </td>

                    </tr>

                    <tr>

                        <td>

                            Contact Email:

                        </td>

                        <td>

                            {!contobj.Email}

                        </td>

                    </tr>

                    <tr>

                        <td>

                            Lead Source:

                        </td>

                        <td>

                            {!contobj.Leadsource}

                        </td>

                    </tr>

                </table>

                </div>

            </td>

            <td>

                <table cellpadding="0" cellspacing="0">

                    <tr>

                        <td>

                        <c:Pdfcomponent value="{!attachment.id}" width="824px" height="1135px"/>

                        </td>

                    </tr>

                </table>

            </td>

        </tr>

    </table>

</apex:page>

Extension Code:

==============

public with sharing class Attachradiocls1 {

    public Contact contobj{get;set;}

    public Attachradiocls1 (ApexPages.Standardcontroller stdcontroller){

        contobj=new Contact();

        String id=ApexPages.CurrentPage().getParameters().get('id');

        if(id!=null && id!=''){

            Attachment att=[select id,name,parentId,body from attachment where id=:id];

            //body=att.body.tostring();

            contobj=[select id,name,Email,LeadSource from Contact where id=:att.parentId];

        }

        

    }

}

Output:

======