amrud

<apex:page standardController="Account" extensions="AddAttachmentExt">
  <apex:includeScript value="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.9.1.min.js"/>
  <apex:form>
    <apex:sectionHeader title="{!Account.name} Attachments" />
    <apex:pageBlock mode="maindetail">
      <apex:pageBlockSection title="Existing Attachments" columns="1">
        <apex:PageBlockTable value="{!Account.Attachments}" var="attach">
          <apex:column value="{!attach.Name}" />
          <apex:column headerValue="Length (bytes)" value="{!attach.BodyLength}" />
          <apex:column headerValue="Owner" value="{!attach.Owner.Name}" />

amrud

public with sharing class AddAttachmentExt 
{
	private ApexPages.StandardController stdCtrl;
	public Attachment att {get; set;}
	
	public AddAttachmentExt(ApexPages.StandardController inStd)
	{
		stdCtrl=inStd;
		att=new Attachment();
	}