JQuery traverses the Table application example

 
function checkwo(){ 
var vales = ""; 
$("#vales").val(vales); 
var flag = false; 
var bo = true; 
$("#data_table").find("tr").each(function(){ 
$(this).find("td input").each(function(){ 
if($(this).attr("name")=="rid") 
{ 
vales+=$(this).val()+"&"; 
} 
if($(this).attr("name")=="qty") 
{ 
var qty = $(this).val(); 
if(qty<0) 
{ 
alert(" The number of firm offers cannot be negative "); 
bo = false; 
return; 
} 
if(qty>0) 
{ 
flag = true; 
} 
vales+=qty+","; 
} 
}); 

}); 
if(bo==false) 
{ 
return; 
} 
$("#vales").val(vales); 
if(flag==false) 
{ 
alert(" Please enter a firm offer "); 
return; 
} 
document.all.sys_submit.click(); 
}