rem: p = p.map( function(v, i) { return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this)) 
add: var p = [0,1].map(function(i){ return (point[i]-pos[i]-this.offset[i]) }.bind(this)); 
context:         p = p.map( function(v, i) {          return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
meta: 6359	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6359/52d313976f72b3f30c833a7675d476a595bc284d/dragdrop.js/buggy/web/js/dragdrop.js