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javascript 统计输入框金额

<script type="text/javascript">
function calculate(f)
{
var nums = f.num;
var ntext = f.num;
var result = <%= request.form("answer")%>;
for(var i=0;i {
if(nums[i].checked)
{
result+=parseFloat(ntext[i].value);
}
}
f.answer.value=Number(result).toFixed(2);
 }
</script>

<script language="javascript">
function setzero(f)
{
var result = 0;
document.getElementById("total").value = Number(result).toFixed(2);
}
</script>

<script type="text/javascript">
var runtotal = <%= runtotal %>;
  parseFloat("runtotal");
 
function UpdateCost(runtotal) {
  var gn, elem;
  for (i=0; i<200; i++) {
    gn = "id"+i;
    elem = document.getElementById(gn);
    if (elem.checked == true) { runtotal += Number(elem.value); }
  }
  parseFloat("runtotal");
  document.getElementById("total").value = runtotal.toFixed(2);
}

本文来源：http://www.gdgbn.com/wangyezhizuo/23215/