Possible Duplicate:
how to zoom in开发者_如何学Python the image and center it
how can javascript be useful in zooming an image . I want to zoom it when we double click on it.
Attach an onclick/ondoubleclick handler to the image. When it fires, increase the image's height/width by a certain percentage.
The very basic version:
<img src="somepic.jpg" height="XXX" width="YYY" ondblclick="this.height *= 1.1; this.width *= 1.1" />
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