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JavaScript / DHTML / AJAX Discussion Thread
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Jan 28th, 2006

RegExp.replace Not Working

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I'm using the following function to modify tags used for mouseover text:

JavaScript / DHTML / AJAX Syntax (Toggle Plain Text)
function delHoverX()
{
  re = /(\bdsc00001\b)/i;
 
  imgTags = document.getElementsByTagName("img");
  for (i=0; i<imgTags.length; i++)
  {
    if (re.test(imgTags[i].title))
    {
      origTitle = imgTags[i].title;
      origAlt = imgTags[i].alt;
      imgTags[i].title.replace(re, "$1");
      imgTags[i].alt.replace(re, "$1");
      if (origTitle == imgTags[i].title && origAlt == imgTags[i].alt)
        {
        imgTags[i].title = "same";
        imgTags[i].alt = "same";
        }
    }
    else
    {
      imgTags[i].title = "";
      imgTags[i].alt = "";
    }
  }
}
function delHoverX()
{
  re = /(\bdsc00001\b)/i;

  imgTags = document.getElementsByTagName("img");
  for (i=0; i<imgTags.length; i++)
  {
    if (re.test(imgTags[i].title))
    {
      origTitle = imgTags[i].title;
      origAlt = imgTags[i].alt;
      imgTags[i].title.replace(re, "$1");
      imgTags[i].alt.replace(re, "$1");
      if (origTitle == imgTags[i].title && origAlt == imgTags[i].alt)
        {
        imgTags[i].title = "same";
        imgTags[i].alt = "same";
        }
    }
    else
    {
      imgTags[i].title = "";
      imgTags[i].alt = "";
    }
  }
}

It is being used on the following web page: http://huntsvillecarscene.smugmug.com/gallery/1144571

For some reason, the regexp.replace is not working. There is a test clause in there to help me diagnose some of what's going on.

I'm not a Javascript programmer. I only have a limited background in C. I've been working on this for 2 days and am frustrated out of my mind.

Any assistance appreciated.

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Samir

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Jan 29th, 2006

Re: RegExp.replace Not Working

Anyone?

Samir

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Jan 31st, 2006

Re: RegExp.replace Not Working

Regular Expressions have always been very difficult for me, for some reason. I'd be happy to try to help when I have a bit more time later this week.

Can you post a very simple "test harness" version of your HTML here?

tgreer

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Made Her Cry

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since Dec 2004

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Jan 31st, 2006

Re: RegExp.replace Not Working

it should be \i not /i for case insensitive in your re (first line of code) so you are possibly never getting a match. its is easy to miss as some others are / (for example /g for whole string)

f1 fan

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This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

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