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1. Write a script in PHP and java script to accept two textarea¡¯s, slot and alternative by the name.
+ slot can contain many a lines, each line includes many words and is ended by a number
+ the chars in the slot can only be either alpha-numeric chars or squares or underlines
+ if a word in the slot is surrounded by underlines, it must start a new line in the alternatives, followed by the detailed definition of the word
+ the square brackets should come in pairs
for example, the following is legal slot and alternative:
SLOT ALTERNATIVE
¡ª¡ª¡ª¡ª¡ª¡ª¡ª- ¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¨C
| this is 1 | | _this_ th ee s |
| the is 1 | | |
| this¡¯s 2 | | |
| _this_ 2 | | |
¡ª¡ª¡ª¡ª¡ª¡ª¡ª- ¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¨C


2. A directory contains many a numbered sub-dir, and other files or directories as well. Each numbered sub-dir contains pictures(only jpg or pn

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