js RuntimeObject() 获取ie里面自定义函数或者属性的集合

var gb1 = 10; 
this.gb2 = 20; 
function gb3() {}; 

(function() { 
var ro = RuntimeObject(), 
ret = [], 

for(p in ro) { 
ret.push(p); 
} 
alert('global var List: ' + ret.join('\n')); 
})();