Q & Ajax

How to vertically center the text without using display: table-cell?

I'm trying to make the menu appear at the middle of 30px line but the problem is that I cannot move it from the top unless I use display: table-cell.

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Using same CSS classes to many DIVs

I am trying to use one CSS class to many DIVs. Is it a good practice? or else are there any disadvantages of doing that. because in VS it says "another object already uses this ID", not an error message but a warning.

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Why does a float css property resize a div's size?

Why exactly would it change the size of the div when I add a float:left property to the myDiv style?

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Splitting string by whitespace, without empty elements?

I am trying to explode an string using javascript to pick searchterms, whitespace-separated. However I get empty array elements if a searchterm is ended by a whitespace, as shown below.

What should I do instead to avoid post-processing this array and removing empty elements?

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How to extract data from AJAX's responseText?

When I use responseText, I get all the data. How to I extract specific parts of it?

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Should I make all links relative or absolute?

Is there a benefit I get from using absolute? Or would relative always work just as well, and give me an added benefit of portability?

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