rem: return(this.substring(0,iPos) + sInserted + this.substring(iPos,this.length)); 
add: return(this.substr(0,iPos) + sInserted + this.substring(iPos)); 
context: String.prototype.insertAt = function(sInserted, iPos) {  return(this.substring(0,iPos) + sInserted + this.substring(iPos,this.length));};
meta: 5576	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5576/178e32cf1968fdd58c4a21b7c4603c2b19d0340f/jquery.wymeditor.js/buggy/src/wymeditor/jquery.wymeditor.js