Arrowizer = {
	initialize: function(selector){
		this.links = $$(selector);
		this.links.map(this.addArrow);
	},
	addArrow: function(el){
		var originalText = el.innerHTML.strip();
		var lastWord = originalText.split(" ").last();
		var firstPart = originalText.substr(0, (originalText.length - lastWord.length));
		var newText = (firstPart ? '<span class="arrow_text">'+firstPart+'</span>' : '')+'<span class="nowrap"><span class="arrow_text">'+lastWord+'</span><span class="arrow"></span></span>';
		el.update(newText);
	}
}

/*add wmode transparent to embed tags - forces them to go behind html elements */
var checkEmbeds = function () {
    var embeds = document.getElementsByTagName("embed");
    for (var i = 0; i < embeds.length; i++) {
        var em = embeds[i];
        var paramm = document.createElement("param");
        paramm.setAttribute('value', 'opaque');
        paramm.setAttribute('name', 'wmode');

        em.setAttribute('wmode', 'opaque');

        var nx = em.nextSibling, pn = em.parentNode;
        pn.insertBefore(paramm, em);
        pn.removeChild(em);
        pn.insertBefore(em, nx);
        
    }
};

function fix_flash() {
    // loop through every embed tag on the site
    var embeds = document.getElementsByTagName('embed');
    for (i = 0; i < embeds.length; i++) {
        embed = embeds[i];
        var new_embed;
        // everything but Firefox & Konqueror
        if (embed.outerHTML) {
            var html = embed.outerHTML;
            // replace an existing wmode parameter
            if (html.match(/wmode\s*=\s*('|")[a-zA-Z]+('|")/i))
                new_embed = html.replace(/wmode\s*=\s*('|")window('|")/i, "wmode='transparent'");
            // add a new wmode parameter
            else
                new_embed = html.replace(/<embed\s/i, "<embed wmode='transparent' ");
            // replace the old embed object with the fixed version
            embed.insertAdjacentHTML('beforeBegin', new_embed);
            embed.parentNode.removeChild(embed);
        } else {
            // cloneNode is buggy in some versions of Safari & Opera, but works fine in FF
            new_embed = embed.cloneNode(true);
            if (!new_embed.getAttribute('wmode') || new_embed.getAttribute('wmode').toLowerCase() == 'window')
                new_embed.setAttribute('wmode', 'transparent');
            embed.parentNode.replaceChild(new_embed, embed);
        }
    }
    // loop through every object tag on the site
    var objects = document.getElementsByTagName('object');
    for (i = 0; i < objects.length; i++) {
        object = objects[i];
        var new_object;
        // object is an IE specific tag so we can use outerHTML here
        if (object.outerHTML) {
            var html = object.outerHTML;
            // replace an existing wmode parameter
            if (html.match(/<param\s+name\s*=\s*('|")wmode('|")\s+value\s*=\s*('|")[a-zA-Z]+('|")\s*\/?\>/i))
                new_object = html.replace(/<param\s+name\s*=\s*('|")wmode('|")\s+value\s*=\s*('|")window('|")\s*\/?\>/i, "<param name='wmode' value='transparent' />");
            // add a new wmode parameter
            else
                new_object = html.replace(/<\/object\>/i, "<param name='wmode' value='transparent' />\n</object>");
            // loop through each of the param tags
            var children = object.childNodes;
            for (j = 0; j < children.length; j++) {
                if (children[j].getAttribute('name').match(/flashvars/i)) {
                    new_object = new_object.replace(/<param\s+name\s*=\s*('|")flashvars('|")\s+value\s*=\s*('|")[^'"]*('|")\s*\/?\>/i, "<param name='flashvars' value='" + children[j].getAttribute('value') + "' />");
                }
            }
            // replace the old embed object with the fixed versiony
            object.insertAdjacentHTML('beforeBegin', new_object);
            object.parentNode.removeChild(object);
        }
    }
}

document.observe("dom:loaded", function () {
    //checkEmbeds();
    //fix_flash();
    Arrowizer.initialize("div#nav_tertiary ul#uxLeftNavHome li.CMSListMenuHighlightedLI, div#nav_tertiary li a, div#content a.arrow, div#masthead a.arrow, #nav_tertiary span.CMSListMenuLinkHighlighted, div.institutes ul li a span.curve span, .cms_arrow a");
});