Adobe Extending Dreamweaver CS4 - Manual (Page 372)

366 EXTENDING DREAMWEAVER CS4
C-level extensibility
function objectTag() {
// Return the html tag that should be inserted
alert(Sample.computeSum(2,2));
return "
}
5 Save the file and restart Dreamweaver.
To execute the computeSum() function, select Insert > HTML > Horizontal Rule.
A dialog box that contains the number 4 (the result of computing the sum of 2 plus 2) appears.