Again fixed the salebill Number problem
Now the itemName in the salebill table is editable and it also shows the list of items on search box. On clicking or pressing enter I can get the item selected. There are many things remaining which are
1. Get the item and convert it to salebill item instead of string that we are getting right now.
2. provision for deleting elements from the table.
3. Getting blank table fields in it.