rem: this.nChildren++ return childNode 
add: this.nChildren++ return childNode 
context: function addChild(childNode) {   this.children[this.nChildren] = childNode   childNode.parentObj = this  this.nChildren++   return childNode } 
meta: 5527	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5527/10ba7e2a5c2d92957e2e2af83e2170a8ccca3aea/ftiens4.js/clean/trunk/cacti/include/treeview/ftiens4.js