/**
 * Finds a link element with text matching the expression supplied. Expressions must
 * begin with "link:".
 */
BrowserBot.prototype.locateElementByLinkText = function(linkText, inDocument, inWindow) {
    var links = inDocument.getElementsByTagName('a');
    for (var i = 0; i < links.length; i++) {
        var element = links[i];
        if (PatternMatcher.matches(linkText, getText(element))) {
            return element;
        }
    }
    return null;
};

BrowserBot.prototype.locateElementByLinkText.prefix = "link";