adamc@579: function callAll(ls) {
adamc@579:   for (; ls; ls = ls.next)
adamc@579:     ls.v();
adamc@579: }
adamc@574: 
adamc@579: function sc(v) { return {v : v, h : null} }
adamc@579: function sv(s, v) { s.v = v; callAll(s.h); }
adamc@579: 
adamc@579: function ss(s) { return s }
adamc@579: function sr(v) { return {v : v, h : null} }
adamc@579: function sb(x,y) { return {v : y(x.v).v, h : null} }
adamc@571: 
adamc@571: function dyn(s) {
adamc@571:   var x = document.createElement("span");
adamc@571:   x.innerHTML = s.v;
adamc@571:   document.body.appendChild(x);
adamc@579:   s.h = { n : s.h, v : function() { x.innerHTML = s.v } };
adamc@571: }