Close window if Javascript Function doesn't exist.

Posted on 2007-04-04
Last Modified: 2012-08-13
I am opening up a pop up from a page and then from the popup I am calling a javascript function from the opening page. Is there a way to check to see if the function exist and if not, to close the popup without displaying any errors?

I am calling the the funtion from my code behind in the popup window as such:
  RegisterStartupScript("GroupManagement", "<script language='javascript'>window.opener.GroupInfoDDL(); window.focus()</script>")

Question by:wilcor14
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
LVL 15

Accepted Solution

stanscott2 earned 500 total points
ID: 18853423
RegisterStartupScript("GroupManagement", "<script language='javascript'>if (window.opener.GroupInfoDDL) {window.opener.GroupInfoDDL(); window.focus()} else {window.close();}</script>")

Author Comment

ID: 18853507
Perfect. Thanks very much. Do you think this will be cross browser compatible? Thanks.
LVL 15

Expert Comment

ID: 18853864
Yes.  I don't think there will be a problem with it, because it doesn't use anything browser specific that I know of.

Featured Post

Get HTML5 Certified

Want to be a web developer? You'll need to know HTML. Prepare for HTML5 certification by enrolling in July's Course of the Month! It's free for Premium Members, Team Accounts, and Qualified Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I've been trying to accomplish this for a while and it just struck me yesterday how to accomplish this task. I have done searches all over the internet looking for ways to email pages from my applications and finally I have done it!!! Every single s…
Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…
Suggested Courses

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question