rem: if (obj == null) return; 
add: if (obj == null) return; 
context: function tt_show(obj, text, title, close_button){  if (obj == null) return;  this.print();  var top = findPosY(obj);  top += obj.offsetHeight;  var left = findPosX(obj);  this.paint(top, left, text, title, close_button);  this.showing = true;}//end tt_show()
meta: 5635	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5635/35ff45cd3454a68834c723b66dc8347076cf358d/tooltip.js/clean/core/lib/js/tooltip.js