how to auto refresh my data

Hi..
You can do it using javascript,
Here I am giving you one example:
First add one button , say its id is 'Button2' and set its property width=0,height=0,visible=true.
Add the code of loading data into click event of Button2.
Then,add 'onload="loadForm()"' in body tag of form.

Add following javascript functions in head tag:
function loadForm()
{
 var interval;
//set interval to 10 sec.
 interval=10 * 1000;
//call 'blink_text()' function in every 10 sec.
 timerblink = setInterval('blink_text()',interval);
}

function blink_text()
{
 document.getElementById("Button2").click();
}