rem: for (var k in a) a[k] = null; 
add: var n;  for (n in a) delete a[n]; 
context: TinyMCE_Engine.prototype.clearArray = function(a) {	for (var k in a)		a[k] = null;	return a;};
meta: 2801	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2801/aa367868a75d03ed600924de4b0f050796094a17/TinyMCE_Array.class.js/clean/jscripts/tiny_mce/classes/TinyMCE_Array.class.js