Get word on click.

word_click.js

// see See http://stackoverflow.com/questions/7563169/detect-which-word-has-been-clicked-on-within-a-text
$(".clickable").click(function(e) {
    s = window.getSelection();
    var range = s.getRangeAt(0);
    var node = s.anchorNode;
    while (range.toString().indexOf(' ') != 0) {
        range.setStart(node, (range.startOffset - 1));
    }
    range.setStart(node, range.startOffset + 1);
    do {
        range.setEnd(node, range.endOffset + 1);

    } while (range.toString().indexOf(' ') == -1 && range.toString().trim() != '' && range.endOffset < node.length);
    var str = range.toString().trim();
    alert(str);
});​