function validate(form) {
    var regNum =/^[0-9]+$/;
    var regPhone =/^[0-9]{2,3}-[0-9]{3,4}-[0-9]{3,4}$/;
    var regMail =/^[_a-zA-Z0-9-]+@[\._a-zA-Z0-9-]+\.[a-zA-Z]+$/;
    var regDomain =/^[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/;
    var regAlpha =/^[a-zA-Z]+$/;
    var regHost =/^[a-zA-Z-]+$/;
    var regHangul =/[°¡-ÆR]/;
    var regHangulOnly =/^[°¡-ÆR ]*$/;
    for (i = 0; i < form.elements.length; i++ ) {
        var currEl = form.elements[i];

        if (currEl.getAttribute("required") != null) {
            if (currEl.value == "") {
                return do_error(currEl);
            }
        }
        if (currEl.getAttribute("option") != null && currEl.value != "") {
            if (currEl.option == "email" && !regMail.test(currEl.value)) {
                return do_error(currEl,"mail");
            }
            if (currEl.option == "phone" && !regPhone.test(currEl.value)) {
                return do_error(currEl,"phone");
            }
            if (currEl.option == "hangul" && !regHangul.test(currEl.value)) {
                return do_error(currEl,"hangul");
            }
        }
    }
}

function do_error(el,type) {
    name = (el.hname) ? el.hname : el.name;
    switch (type) {
        case "mail":
            alert(name + "ÀÇ Çü½ÄÀÌ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù");
            break;
        case "phone":
            alert(name + "ÀÇ Çü½ÄÀÌ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù");
            break;
        case "hangul":
            alert(name + " Ç׸ñ¿¡ ÇѱÛÀÌ Æ÷ÇԵǾîÀÖÁö ¾Ê½À´Ï´Ù");
            break;
        default:
            alert(name + " Ç׸ñÀº ¹Ýµå½Ã ÀÔ·ÂÇØ¾ß ÇÕ´Ï´Ù");
            break;
    }
    el.focus();
    return false;
}   

function checked_it(name,value) {
    var el = document.all.tags("input");
    for (i = 0 ; i < el.length; i++) {
        if (el[i].name == name && el[i].value == value) {
            el[i].checked = true;
        }
    }
}

function selected_it(name,value) {
    var el = document.all.tags("select");
    for (i = 0; i < el.length; i++) {
        if (el[i].name == name) {
            if (el[i].size > 1 && el[i].getAttribute("MULTIPLE") != null ) {
                for (k=0; k < value.length; k++) {
                    alert(value[k]);
                    for (j = 0; j < el[i].options.length; j++ ) {
                        if (el[i].options[j].value == value[k]) el[i].selectedIndex[++x] = j;
                    }
                }
            } else {
                for (j = 0; j < el[i].options.length; j++ ) {
                    if (el[i].options[j].value == value) el[i].selectedIndex = j;
                }
            }
        }
    }
}

function enabled_it(name) {
    var arr = new Array("input", "select", "textarea");
    for(k=0; k<arr.length; k++) {
        var el = document.all.tags(arr[k]);
        for (i = 0 ; i < el.length; i++) {
            if (el[i].name == name) {
                el[i].disabled = false;
            }
        }
    }
}

function disabled_it(name) {
    var arr = new Array("input", "select", "textarea");
    for(k=0; k<arr.length; k++) {
        var el = document.all.tags(arr[k]);
        for (i = 0 ; i < el.length; i++) {
            if (el[i].name == name) {
                el[i].disabled = true;
            }
        }
    }
}