Hi, I have an aspx page, from this page, I have a button to do a window.open to popup a new page, and I am using a javascript to assign a value from the original page to the popup page using:<BR><BR>document.frmPopupPage.hidField.value = window.opener.frmOriginPage.txtField.value;<BR><BR >This seems simple, but the problem is that the assigning of value sometimes work, but sometimes doesn&#039;t work. I need to manually refresh the popup page by pressing &#060;F5&#062; key to force the value assignment.. Why is it happen?? Please HELP!!!