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chained dropdown from database

NEED HELP ! http://youngstersofchennai.hol.es/REGISTER/index.php i have this registration page,but i wanna display a chained dropdowned like is they select the area i wanna display user names of the people  how can i do that?

Different behavior of heading tag with section

If I'm write Heading tag (h1 and h2) in section or aside it shows same font size and if I put this outside of section or aside tag it works normal. Why? <h1>heading 1</h1> <h2>heading 2</h2> <h3>heading 3</h3...

Quick definition question.

Hi, I am having trouble finding the technical term for this (see attachment), i have no idea what it called in english, it is basically a type of browser that popup on directly on the page, so when i click on an ad, instead of it opening new t...

Avoid Discrete Polygon Colliders in Spritesheet Animations

Scenario :- I am using a spritesheet with a few frames to run my animations in ImpactJS. As using large number of frames can increase my sheet size. Basically it is a shot playing animation in which I have applied Polygon collider to the bat wit...

How to set high velocity in Box2D

I want to throw an object in Box2d by applying a force vector, But it is limited to a certain velocity even if I Apply Force by a very high value? How can I achieve this ? For Ex:- I have to fire a bullet at a very high speed. var force = new ...

How to access frame numbers in Spine Animations

When using Spine (http://esotericsoftware.com/) JavaScript version. How can I access the frame numbers while the animation is playing as I have to perform some tasks based on them ?
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