Moose
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Posts: 439
Karma: 17 |  | Add image titles to images with alts
« Thread Started on Mar 10, 2007, 12:53pm » | |
Basic code, if an image has an alt but not a title, it will receive a title as well. So if some browsers make the alt a screen tip as well and some don't, this can help fix the problem.
Global Footer:
Code:<script type="text/javascript">
<!--
// Add image titles to images with alts
var img = document.getElementsByTagName('img');
for(i=0;i<img.length;i++){
if(img[i].alt && img[i].alt != "" && img[i].title == ""){
img[i].title = img[i].alt;
}
}
//-->
</script>
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Greg says: Coding music... Greg says: Hmm... Greg says: I wouldn't rule it out.  Chris 3.0 [New features? Yes.] says: Greg says: If you think about machine code it's a bunch of 1s and 0s Chris 3.0 [New features? Yes.] says: Anything is possible. Greg says: Yeah try to code Metallica Chris 3.0 [New features? Yes.] says: Yeah, I'll get right on that... right after I learn to fly. |
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Aaron [Gone 'til Monday]
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Posts: 834
Karma: 13 | | Re: Add image titles to images with alts
« Reply #1 on Mar 10, 2007, 1:50pm » | |
You need to work with your booleans a little more.
if(img[i].alt && !img[i].title)
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Moose
Senior Member
member is offline
Joined: Aug 2005
Gender: Male
Posts: 439
Karma: 17 | | Re: Add image titles to images with alts
« Reply #2 on Mar 10, 2007, 9:09pm » | |
Quote:You need to work with your booleans a little more.
if(img[i].alt && !img[i].title) |
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I realize you can do that, but I don't how cross browser that is.
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Greg says: Coding music... Greg says: Hmm... Greg says: I wouldn't rule it out. Chris 3.0 [New features? Yes.] says: Greg says: If you think about machine code it's a bunch of 1s and 0s Chris 3.0 [New features? Yes.] says: Anything is possible. Greg says: Yeah try to code Metallica Chris 3.0 [New features? Yes.] says: Yeah, I'll get right on that... right after I learn to fly. |
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Aaron [Gone 'til Monday]
Coding Helper
Kay's modest, but friendly...ish, pet.
member is offline
woof! =)
Joined: Nov 2006
Gender: Male
Posts: 834
Karma: 13 | | Re: Add image titles to images with alts
« Reply #3 on Mar 11, 2007, 4:26am » | |
If an object isn't found (such as an attribute), it returns "undefined." The only cross-browser issue you should ever run in to there (if at all) is if the browser defines a list of common attributes to that element as "" (in which case you'd still recieve a false boolean).
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