It's not really well explained. When it says 'exact' it means that the image tag must be in caps like it is in the instructions - also, you must not use the same delimiters within the tag as are used to delimit the variable's value without escaping them, the easiest way is to use single quotes (') to delimit the value:
Code:
barText='<IMG src="images/details.gif" />'; // <IMG> tag supported. Put exact html for an image to show.
This is a bad idea, use HTML, not XHTML:
But that depends upon your DOCTYPE, which, as I say, should be HTML, not XHTML. Upper case tag names are invalid in XHTML, but the script requires it here. There is virtually no reason to use an XHTML DOCTYPE.
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