Why Is My BackgroundColor An Empty String ?

Feb 8, 2010

I'm trying to compare a <div> background color with another color. However, on FireBug, I noticed that my <div> doesn't have a background color code in it (I placed document.getElementById(o) on watch), even though I have already specified on my css. As a result, I'm comparing an empty string with another color code. Why is this so ?

Javascript:

function highlight(o) {
var color1;
color1 = document.getElementById(o).style.backgroundColor;[code].....

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i have a problem dealing with an xmlhttprequest with the POST method: i receive a string from a java applet in my page and i want to use this string as a post parameter to send an xmlhttprequest, but once i send the request the string becomes empty. i put some debug alert before invoking the send method and they show the string properly. the string comes from a new String(byte[]) in java, so i thought maybe there's somethinig related to the charset?

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[Code]...

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I just started with jQuery and it is driving me nuts:-) Each time I think I am having it well i am testing and the variable passed through gives an empty string.
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[Code]......

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When I set the background colour of an element using
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If I use tdRef.bgColor to set/read the value, I always get #rrggbb
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IE, on the other hand, when using style.backgroundColor reports back in
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My question is which method is most consistent across various browsers?
I want to use style.backgroundColor (since some browsers don't support
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Any idea why this is and if/how this can be fixed?

This line works as expected, but it may be relevant to highlight.
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[Code]...

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Reference: [url]

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[code]....

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[CODE]
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[CODE]

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[CODE]

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[Code]....

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Code:

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