251   this.insertAtCursor = function (fld, val) {  argument
252     var r = self.getCursorPosition(fld);
256     var tmp = document.selection?fld.value.replace(/\r/g,""):fld.value;
257     fld.value = tmp.substring(0, r)+val+tmp.substring(r,tmp.length);
258     self.setRange(fld,r+val.length,r+val.length);
267   this.deleteAtCursor = function (fld, after) {  argument
269     var r = self.getCursorPosition(fld),
270         e = self.getEnd(fld);
282     var tmp = document.selection?fld.value.replace(/\r/g,""):fld.value;
283     fld.value = tmp.substring(0, r)+tmp.substring(e,tmp.length);
284     self.setRange(fld, r, r);
292   this.deleteSelection = function (fld) {  argument
293     var r = self.getCursorPosition(fld),
294         e = self.getEnd(fld);
299     var tmp = document.selection?fld.value.replace(/\r/g,""):fld.value;
300     fld.value = tmp.substring(0, r)+tmp.substring(e,tmp.length);
301     self.setRange(fld, r, r);