Form Validation using PHP

I have created a web form and its elements are validated using PHP. In, PHP when form is submitted , values in fields are lost and i have also handled it that values will not lose. Code is as follow;

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form Validation Using Javascript

I have created program using javascript to validate the form. the code validate the pattern applied on the textbox and the requird field. Code is as following;

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I have create another program which uses Modernizr to detect html 5 feature used in the form. Code is as follow;

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Links Preview

Its an ajax project and in this project i have created tool tip using ajax to show the description of the link. I obtain the contents of the page of the link and show it as preview window when mouse move over the link. The project is attached in below link.

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