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displayCitations function manual

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JS function that add a link included in the cite attribute of the blackquote HTML element as sup element close to the blackquote. Takes no argument.

From book Dom Scripting by Jeremy Keith.

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  1. function displayCitations() {
  2. 	var quotes = document.getElementsByTagName("blockquote");
  3. 	for (var i=0; i<quotes.length; i++) {
  4. 		if (!quotes[i].getAttribute("cite")) continue;
  5. 		var url = quotes[i].getAttribute("cite");
  6. 		var quoteChildren = quotes[i].getElementsByTagName("*");
  7. 		var quoteChildren = quotes[i].getElementsByTagName('*');
  8. 		if (quoteChildren.length < 1) continue;
  9. 		var elem = quoteChildren[quoteChildren.length - 1];
  10. 		var link = document.createElement("a");
  11. 		var link_text = document.createTextNode("source");
  12. 		link.appendChild(link_text);
  13. 		link.setAttribute("href",url);
  14. 		var superscript = document.createElement("sup");
  15. 		superscript.appendChild(link);	
  16. 		elem.appendChild(superscript);
  17. 	}
  18. }

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