enlarging image in a popup window

Hi,

I have a table in the database with imageid and i want to bind it directly please help me i have written this function i am not getting how to send an id from database directly and how to call this function in onclick() event in imagebutton.
function OpenWindow()
{

 
window.open(('displayimage.aspx?id='<%#Eval("imageid")%>),"newWindow","toolbar=no,location=yes,directories=no,status=no,menubar=no,addressbar=no,scrollbars=no,resizable=0,width=800,height=600,max-height=600");
}
...