Expiring Today—Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Problem with javascript and cgi

Posted on 2000-02-27
1
Medium Priority
?
225 Views
Last Modified: 2013-12-25
When I write my cgi script with the print qq|  |; thing,
I'd get the following error with my javascript :

CGI ERROR
==========================================
Error Message       : Error loading required libraries.
Check that they exist, permissions are set correctly and that they compile.
Reason: syntax error at ./html.pl line 627, near "))
      "
Can't use subscript on constant item at ./html.pl line 630, near "++]"
Can't use subscript on constant item at ./html.pl line 631, near "++]"
Can't use subscript on constant item at ./html.pl line 631, near "1]"
Can't use subscript on constant item at ./html.pl line 631, near "j]"
Can't use subscript on constant item at ./html.pl line 632, near "2]"
syntax error at ./html.pl line 634, near "//used "
Unmatched right bracket at ./html.pl line 635, at end of line

The script is a rollover script provided by dreamweaver. Its :

function MM_swapImage() { //v2.0
  var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.MM_swapImgData;
  for (i=0; i < (MM_swapImage.arguments.length-2); i+=3) {
    objStr = MM_swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1];
    if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
        (objStr.indexOf('document.all[')   ==0 && document.all   ==null))
      objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);
    obj = eval(objStr);
   if (obj != null) {
      swapArray[j++] = obj;
      swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];
      obj.src = MM_swapImage.arguments[i+2];
  }
 }
  document.MM_swapImgData = swapArray; //used for restore
}

The line with swapArray was made the error...


what is wrong with the script?
Hope someone would shed some light into this.
0
Comment
Question by:Aphroditus
[X]
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
1 Comment
 

Accepted Solution

by:
akf earned 400 total points
ID: 2563821
Okay, you have a perl script that uses "print qq|[stuff]|" to emit your Javascript. Simple fix: you have | in your Javascript, so you can't use | as a delimiter with qq. Looking at your javascript, it would be safe to quote with qq#:

print qq#function MM_swapImage() { //v2.0
 var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.MM_swapImgData;
[. . .]
 document.MM_swapImgData = swapArray; //used for restore
                   } #;

A more readable way to accomplish the same thing:

print <<"ENDJS"';
function MM_swapImage() { //v2.0
 var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.MM_swapImgData;
[. . .]
 document.MM_swapImgData = swapArray; //used for restore
                   }
ENDJS



0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

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

If you get a (Blue Screen of Death), your system writes a small file called a minidump. Your first step is to make certain your computer is setup to record memory dumps. Right click My Computer, choose properties. Click on the advanced tab, an…
In this tutorial I will show you how to make a simple HTML bar chart with the usage of WhizBase, If you want more information about WhizBase please read my previous articles at http://www.experts-exchange.com/ARTH_5123186.html (http://www.experts-ex…
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…
In this fifth video of the Xpdf series, we discuss and demonstrate the PDFdetach utility, which is able to list and, more importantly, extract attachments that are embedded in PDF files. It does this via a command line interface, making it suitable …

719 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