php - How to compare textbox value with table cell value -

i have table displays values of product name , available stock retrieving database. want insert quantity manually.

the code contains php incremental id's table row, available stock cell , quantity textbox, such last_<?php echo $id; ?> stock , quanti_<?php echo $id; ?> quantity.

i want compare these 2 values such quantity value must less or equal stock value.onclick of generate bill button again want validate not submit form if quantity greater stock.

$(".edit_td1").click(function() {     var id=$(this).attr('id');     //alert(id);     //$('#quanti_'+id).blur(function(){     $('.cls_quant').blur(function(){         //var id=$(this).attr('id');         //var qt=$('#quanti_'+id).val();         var qt=$(this).val();         var stk=$('#last_'+id).html();          console.log("quanty"+qt);         console.log("stock"+stk);          if (qt>stk)         {             console.log("quantity > stock");             return false;         }         else              return true;      }); }); 

i suggest add parseint() fucntion vars that:

var qt = parseint($(this).val()); var stk= parseint($('#last_'+id).html()); 

i hope helps