The following are for HTML, CsS, and Javascript change an image's _ attribute to change which picture it displays. a) location b) URL c) sro d) source 2. Function getElementById returns a (n) a) boolean b) string c) id attribute d) object 3. Which of the following is not a DOM collection? a) roots b) anchors c) links d) forms 4 What is the value of s3 after the following code is executed? var s1 "one" ; var s3three" s1.concat s2): a) one b) onetwo c) three d) onetwothree 5 Which of the following statements would correctly print out the sentence Hello World" in blue? style \"color: blue\");

") a) document.write( b) c) d) document.write( document.write( document.write ( "

style

");

); + "); document.write( "Hello World ) 6 Which of the following is a JavaScript repetition statement? a) while... repeat b) do.. .while c) do...repeat d) for. ..do