function temp (form)
{
form.total.value=eval(form.P1.value) + eval(form.P2.value) + eval(form.P3.value) + eval(form.P4.value) + eval(form.P5.value) + eval(form.P6.value) + eval(form.P7.value) + eval(form.P8.value) + eval(form.P9.value) + eval(form.P10.value) + eval(form.P11.value) + eval(form.P12.value) + eval(form.P13.value) + eval(form.P14.value) + eval(form.P15.value) + eval(form.P16.value) + eval(form.P17.value) + eval(form.P18.value) + eval(form.P19.value);
}