compare 2 textarea

Hello! First sorry for my english.
I need from javascript.
DATA:
I have 2 textarea (X & Y).
“X” have value=”My name is John Smith” (example).
“Y” have not value.
I want, when I type in textarea “Y”, the false symbols become
red color (the script must compare value in “X” with value
in “Y” and when the values not fall -> they become red color).
Look the pic for more info! ([url]http://www.valeri2.hit.bg[/url])
Please help me! Thank you previous!
Mye e-mail: [email][email protected][/email]
All the best!

[upl-file uuid=0b42b449-09fe-4109-91e6-d5de10d373d3 size=3kB]pic.gif[/upl-file]

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