A loop is probable necessary for this

I want to simplify this code. I want to set everything inside a form of 100 input boxes to zero without making 100 lines of code. What would be the best approach.

I have tried this...
for (a=0; a<=100; a=a+1){ qtr1("pr"[a].value=0}

I have also tried this....
for (a=0; a<=100; a=a+1){ qtr1("pr"+a).value=0}



qtr1.pr1.value=0;
qtr1.pr2.value=0;
qtr1.pr3.value=0;
qtr1.pr4.value=0;
qtr1.pr5.value=0;

I am not sure what I am doing wrong.

Thank you in advance for your reply. I appreciate your time.

Code:

---

var inputs = document.forms.qt1.getElementsByTagName('input');
for(var i=0, len=inputs.length; i<len; i++){
        inputs[i].value=0;
}

---

Thank you Trandrus, your help is appreciated. It is perfect.

As an alternate, you could have used getElementsByName(), if the names are continuously indented (from pr1, pr2... to prwhichever)

Code:

---

var inp, i=1;
while(inp=document.getElementsByName('pr'+[i++])){
inp.value=0;
}

---