Expanded Quix bookmarklet

Quic bookmarklet.js

javascript:Quix();function Quix() {
    var e=encodeURIComponent; // shortcut for the function name
    var t=window.getSelection ? window.getSelection():
        (document.getSelection? document.getSelection(): (document.selection ? document.selection.createRange().text:'')); // Get selection or empty string
    var c=window.prompt('Quix: Type `help` for a list of commands:');
    if(t!='') {
        if(c) {
            c+=' '+t;  // append selection to typed text
        }
        else {
            c=''+t;  // use the text in prompt
        }
    }
    if(c) {
        var u='http://quixapp.com/go/?c=' + e(c) + 
                '&t=' + (document.title?e(document.title):'') + 
                '&s=' + '&v=080' + '&u=' + 
                (document.location?e(document.location):'');
        d=''+document.location;
        if(d.substr(0,4)!='http') {
           window.location=u+ '&mode=direct';
        }
        else {
            heads=document.getElementsByTagName('head');
            if(c.substring(0,1)==' ') {
                var w=window.open(u+'&mode=direct');
                w.focus();
            }
            else if (heads.length==0){
                window.location= u + '&mode=direct';
            }
            else {
                q=document.getElementById('quix');
                if(q) {
                    q.parentNode.removeChild(q);
                }
                sc=document.createElement('script');
                sc.src=u;
                sc.id='quix';
                sc.type='text/javascript';
                void(heads[0].appendChild(sc));
            }
        }
    }
}