Window.Open doesnt work properly

Hi,
I am having a strange problem. I need to pop up an aspx page from an asp button click in my aspx code behind page. I am using the following code for this in the click event of the button:

Code:

---

Page.RegisterClientScriptBlock("New","<script language=\'javascript\'>window.open(\'template.aspx?type=2&amp;x=\'+300,\'DetailedView\',\'width=\'+300+\',height=\'+300+\',resizable=0,scrollbars=1,toolbar=0,location=0,directories=0,status=1,menubar=0,copyhistory=0\');</script>");

---

But when I click on the button, nothing happens. If I press the ctrl button alongwith the aspx button, then the new page appears.

Why is this happening ? I have tried with many variations of window.open and the result is the same.

If I put the window.open in a javascript method and add the attributes to the aspx button, then it works fine. I have written the Javascript method in the html as:

Code:

---

function Show(x,nsw,nsh)
{
window.open('template.aspx?type=2&x='+x,'DetailedView','width='+nsw+',height='+nsh+',resizable=0,scrollbars=1,toolbar=0,location=0,directories=0,status=1,menubar=0,copyhistory=0');
return false;
}

---

and added the attribute in the code behind's page_load event as:

Code:

---

this.butSort.Attributes.Add("onclick","return Show(300,300,300);" );

---

But, I do need to write it in the code behind page as I have to do some logical processings before the pop up is viewed.

I am using IE6 SP1. If I choose "View in Browser" option from the popup menu of the aspx page in the .net IDE, then one new window is opened for the popup...strange...

What to do ? Thanks in advance...