Consider the following scenario:

Image thumbnails are displayed on a page. Upon clicking a thumbnail, the image is displayed in its actual size. The thumbnails aren't clickable, unless they are completely downloaded.

What event can be used to prevent the user from clicking on the thumbnails until they are completely downloaded?

Consider the following image definition: Which will change the image to 'companylogo2.gif' when the page loads?

Which will detect which DOM element has the focus?

Which will detect if the browser supports a certain CSS property?

Correct way to resize an iframe based on content?

Which is not a correct way to empty the array a?

Which is the correct method to use, in order to know the name of both the Object and Object Class in JavaScript?

What's the output?

Which is correct values of variable, and why? VariableA = [6,8]; VariableB = [7,9]; variableC = variable + variable;

Performance-wise, which is the fastest way of repeating a string in JavaScript?

What is the error in the statement: var charConvert = toCharCODE('X');?