1 explain image replacement kellum and phark


1. Explain Image replacement Kellum and Phark Technique.?

2. What are the three core components of a Responsive webpage?

3. Using JavaScript differentiate embedded and external scripts. ?

4. Use Function in JavaScript and take example of onLoad() and onUnload () intrinsic event attributes in your program to display message WELCOME when page upload and THANKS FOR VISIT when page is unload in a alert window?

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Basic Computer Science: 1 explain image replacement kellum and phark
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