jQuery Grid Plugin - jqGrid

hi, I have a big prblem column, which's colmodel is :

 {name:'factvalue', index:'factvalue',width:80,align:'center',editrules:{required:true,number:true},sorttype:'int',editable:true,classes:"JqGrid"},

So you see, the editrule is set number: true. and I could celledit it well. if I input a none-number, it will show a messagebox to say the factvalue colum need a number.

But, the big problem is, if I put in the number contain a  thousand bits, just like: '2,000.00', it dont know it, and also report that factvalue colum need a number! That's very bad, because if we have a big number, ofcause we need the thousand bits.

yours,

Ivan