rem: isSelectable: function(item) {  return true; }, 
add: isSelectable: function(/*Object*/item){    return true; }, 
context: 	isSelectable: function(item) {		// user-customizable, will filter items through this		return true;	},
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/Selection.js/clean/www/resources/dojo-ajax/src/selection/Selection.js