setFocus text

Ok, first let me clarify that I have used the search and I found what I was looking for, but I can't seem to get it to work. I have an input textbox that I want to automatically get the focus. Right now I am using this

Code:

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setFocus(input_text);
input_text.text = "";

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It clears the textbox, but it won't put the blinking cursor in the textbox. I have to manually click on the box. Is there a way to make it so the blinking cursor goes to the textbox? Thanks

i've been using this:

Code:

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Selection.setFocus(nameinput);
Selection.setSelection(0, 1);

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where nameinput is the name of my Input Text box.
hope it helps...

what is Selection? Also it kind of worked, but I can't use backspace.

it's a standard flash object:
http://www.adobe.com/support/flash/a...ionary635.html
I don't know why backspace won't work though...