I am using javascript for adding and removing rows from table as per user require ment like if we press ADDROW button it adds extra row to table and if we pressREMOVEROW it delets the last row.. Now i want to access the data from textbox like this..

var crpt = document.getElementById("itrtr2").value; //no. of rows

for(var k=1;k <=crpt;k++)

{

qtyc = document.getElementById("txtRowc3"+k).value;

unit_pricec = document.getElementById("txtRowc5"+k).value;

alert('QTYC:'+qtyc+' UPC:'+unit_pricec);

cttl = qtyc * unit_pricec;

document.getElementById("txtRowc6"+k).value = cttl.toFixed(2);

csbttl = csbttl + cttl;

}

document.getElementById("subttlC").value=csbttl.toFixed(2);

it shows the value of textRowc3i in qtyc in alert box but also givs error document.getElementById("txtRowc3"+k) is null..


I tried for this but problem is not solved please help...
Thank You...