Clear all form inputs

clear-form.js

/**
 * Clear form data.
 * 
 * @param HTMLFormElement
 */
function clearForm(form) {    
    var  l = form.elements.length, o, list = {
        "checkbox": {prop: "checked", val: false},
        "radio": {prop: "checked", val: false},
        "select-one": {prop: "selectedIndex", val: null},
        "select-multi": {prop: "selectedIndex", val: null},
    };

    for (;l--;) {
        o = list[form[l].type];
        o ? (form[l][o.prop] = o.val) : (form[l].value = '');
    }
}
clearForm(document.forms[0]);