Clear all HTML fields using javascript

var elements = document.getElementsByTagName("input");
for (var ii=0; ii < elements.length; ii++) {
  if (elements[ii].type == "text") {
    elements[ii].value = "";
  }
}

var fields = document.getElementsByTagName('input'),
    length = fields.length;
while (length--) {
    if (fields[length].type === 'text') { fields[length].value = ''; }
}