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Home: Perl Programming Help: Intermediate: Back button causing havoc

microwebber Novice May 26, 2002, 9:33 AM Post #1 of 4 (341 views) Back button causing havoc Can't Post The back button on the browser is causisng havoc on my script. How can I determine if the user has pushed the back button from the browser? Is their a CGI method for this? yorkeylady@earthlink.net Thanks Tricia yourkeylady@earthlink.net

fashimpaur User / Moderator May 29, 2002, 5:19 AM Post #2 of 4 (335 views) Re: [microwebber] Back button causing havoc [In reply to] Can't Post Microwebber, Your web page that is providing the form data may need to have a javascript that checks to see if the user hit a backspace key when the type of form element was not a text input type (input or textarea). This was messing up a CGI application I had and fixed the problem. To see what I mean, go to any web site. Then go to www.google.com and click the cursor on any part of the screen that is not the search input box or a button or a link. Then hit your backspace key. It should take you back to the last website you were at. This is default functionality in Internet Explorer. I am not sure if the same problem exists in other web browsers. To fix this, write a keypress event handler that cancels the event bubble in IE if the button was a backspace key and the form input type was not a textarea or input. Good Luck, Dennis $a="c323745335d3221214b364d545". "a362532582521254c3640504c3729". "2f493759214b3635554c3040606a0", print unpack"u*",pack "h*",$a,"\n\n";

microwebber Novice May 29, 2002, 6:54 AM Post #3 of 4 (330 views) Re: [fashimpaur] Back button causing havoc [In reply to] Can't Post Is the backspace key equivalent to the back button on the browser? Thanks Tricia yourkeylady@earthlink.net

fashimpaur User / Moderator May 29, 2002, 7:02 AM Post #4 of 4 (330 views) Re: [microwebber] Back button causing havoc [In reply to] Can't Post No. The Back button is equivalent to a History.back event. The Backspace key, when the cursor is not in a text type input box, sends a History.back event to the browser. The only way to stop the use of the back button is to intially open your application in a new browser window with none of the menus displayed. This, in conjunction with the capture of the Backspace keypress (oops and also the Alt + <left arrow key>) will eliminate all instances of the History.back event. It really is a pain in the neck to stop. Good luck, Dennis $a="c323745335d3221214b364d545". "a362532582521254c3640504c3729". "2f493759214b3635554c3040606a0", print unpack"u*",pack "h*",$a,"\n\n";

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