if (REQUIRE_ONCE == null)
{
    // 
    var REQUIRE_ONCE = true;

    var wrestMsg = "";
    var wrestFld = null;
    var wrestFldDefaultColor = "#FFFFFF"; 
    var wrestFldBackColor = "#FFE4E1"; 
    var arrAttr  = new Array ("required", "trim", "minlength", "email", "nospace", "numeric", "alpha", "alphanumeric", "jumin", "saupja");

    // subject  return,  tag name
    function wrestItemname(fld)
    {
        var itemname = fld.getAttribute("itemname");
        if (itemname != null && itemname != "")
            return itemname;
        else
            return fld.name;
    }

    // 
    function wrestTrim(fld) 
    {
        var pattern = /(^\s*)|(\s*$)/g; // \s 
        fld.value = fld.value.replace(pattern, "");
        return fld.value;
    }

    // 
    function wrestRequired(fld)
    {
        if (wrestTrim(fld) == "") {
            if (wrestFld == null) {
				// 3.30
				// 
                wrestMsg = wrestItemname(fld) + " : 必須 "+(fld.type=="select-one"?"選択":"入力")+"です。\n";
                wrestFld = fld;
            }
        }
    }

    // 
    function wrestMinlength(fld)
    {
        var len = fld.getAttribute("minlength");
        if (fld.value.length < len) {
            if (wrestFld == null) {
                wrestMsg = wrestItemname(fld) + " :  少なくとも " + len + "文字以上入力してください。\n";
                wrestFld = fld;
            }
        }
    }

    // 
    function wrestEmail(fld) 
    {
        if (!wrestTrim(fld)) return;

        //var pattern = /(\S+)@(\S+)\.(\S+)/; 
        var pattern = /([0-9a-zA-Z_-]+)@([0-9a-zA-Z_-]+)\.([0-9a-zA-Z_-]+)/;
        if (!pattern.test(fld.value)) {
            if (wrestFld == null) {
                wrestMsg = wrestItemname(fld) + " : メール住所形式ではありません。\n";
                wrestFld = fld;
            }
        }
    }

    //  
    //  (http://dasir.com) 2003-06-24
    function wrestNumeric(fld) 
    { 
        if (fld.value.length > 0) { 
            for (i = 0; i < fld.value.length; i++) { 
                if (fld.value.charAt(i) < '0' || fld.value.charAt(i) > '9') { 
                    wrestMsg = wrestItemname(fld) + " : 数字ではありません。\n"; 
                    wrestFld = fld; 
                }
            }
        }
    }

    //  
    // (http://dasir.com) 2003-06-24
    function wrestAlpha(fld) 
    { 
        if (!wrestTrim(fld)) return; 

        var pattern = /(^[a-zA-Z]+$)/; 
        if (!pattern.test(fld.value)) { 
            if (wrestFld == null) { 
                wrestMsg = wrestItemname(fld) + " : 英字ではありません。\n"; 
                wrestFld = fld; 
            } 
        } 
    } 

    //  
    // (http://dasir.com) 2003-07-07
    function wrestAlphaNumeric(fld) 
    { 
       if (!wrestTrim(fld)) return; 
       var pattern = /(^[a-zA-Z0-9]+$)/; 
       if (!pattern.test(fld.value)) { 
           if (wrestFld == null) { 
               wrestMsg = wrestItemname(fld) + " : 英字または数字ではありません。\n"; 
               wrestFld = fld; 
           } 
       } 
    } 

    // 
    function wrestJumin(fld) 
    { 
       if (!wrestTrim(fld)) return; 
       var pattern = /(^[0-9]{13}$)/; 
       if (!pattern.test(fld.value)) { 
           if (wrestFld == null) { 
               wrestMsg = wrestItemname(fld) + " : 住民番号を 13桁数で入力してください。\n"; 
               wrestFld = fld; 
           } 
       } else {

            var sum_1 = 0;
            var sum_2 = 0;
            var at=0;
            var juminno= fld.value;
            sum_1 = (juminno.charAt(0)*2)+
                    (juminno.charAt(1)*3)+
                    (juminno.charAt(2)*4)+
                    (juminno.charAt(3)*5)+
                    (juminno.charAt(4)*6)+
                    (juminno.charAt(5)*7)+
                    (juminno.charAt(6)*8)+
                    (juminno.charAt(7)*9)+
                    (juminno.charAt(8)*2)+
                    (juminno.charAt(9)*3)+
                    (juminno.charAt(10)*4)+
                    (juminno.charAt(11)*5);
            sum_2=sum_1 % 11;

            if (sum_2 == 0) {
                at = 10;
            } else {
                if (sum_2 == 1) 
                    at = 11;
                else 
                    at = sum_2;
            }
            att = 11 - at;
            // 1800 
            // 
            // 
            if (juminno.charAt(12) != att || 
                juminno.substr(2,2) < '01' ||
                juminno.substr(2,2) > '12' ||
                juminno.substr(4,2) < '01' ||
                juminno.substr(4,2) > '31' ||
                juminno.charAt(6) > 4) {
               wrestMsg = wrestItemname(fld) + " : 正しい住民番号ではありません。\n"; 
               wrestFld = fld; 
            }

        }
    } 

    // 
    function wrestSaupja(fld) 
    { 
       if (!wrestTrim(fld)) return; 
       var pattern = /(^[0-9]{10}$)/; 
       if (!pattern.test(fld.value)) { 
           if (wrestFld == null) { 
               wrestMsg = wrestItemname(fld) + " : 事業登録番号を10桁数で入力してください。\n"; 
               wrestFld = fld; 
           } 
       } else {

            var sum = 0;
            var at = 0;
            var att = 0;
            var saupjano= fld.value;
            sum = (saupjano.charAt(0)*1)+
                  (saupjano.charAt(1)*3)+
                  (saupjano.charAt(2)*7)+
                  (saupjano.charAt(3)*1)+
                  (saupjano.charAt(4)*3)+
                  (saupjano.charAt(5)*7)+
                  (saupjano.charAt(6)*1)+
                  (saupjano.charAt(7)*3)+
                  (saupjano.charAt(8)*5);
            sum += parseInt((saupjano.charAt(8)*5)/10);
            at = sum % 10;
            if (at != 0) { att = 10 - at;  }
            if (saupjano.charAt(9) != att) {
               wrestMsg = wrestItemname(fld) + " : 正しい事業登録番号ではありません。\n"; 
               wrestFld = fld; 
            }

        }
    } 

    // 
    function wrestNospace(fld)
    {
        var pattern = /(\s)/g; // \s
        if (pattern.test(fld.value)) {
            if (wrestFld == null) {
                wrestMsg = wrestItemname(fld) + " : 空白がなくしてください。\n";
                wrestFld = fld;
            }
        }
    }

    // submit
    function wrestSubmit()
    {
        wrestMsg = "";
        wrestFld = null;

        var attr = null;

        // 
        for (var i = 0; i < this.elements.length; i++) {
            // Input tag
			// 3.30
			//  select-one
            if (this.elements[i].type == "text" || 
                this.elements[i].type == "file" || 
                this.elements[i].type == "password" ||
                this.elements[i].type == "select-one" ||
                this.elements[i].type == "textarea") {
                // 
                for (var j = 0; j < arrAttr.length; j++) {
                    // 
                    if (this.elements[i].getAttribute(arrAttr[j]) != null) {
                        // 
                        if (this.elements[i].getAttribute("required") != null) {
                            this.elements[i].style.backgroundColor = wrestFldDefaultColor;
                        }
                        switch (arrAttr[j]) {
                            case "required"     : wrestRequired(this.elements[i]); break;
                            case "trim"         : wrestRequired(this.elements[i]); break;
                            case "minlength"    : wrestMinlength(this.elements[i]); break;
                            case "email"        : wrestEmail(this.elements[i]); break;
                            case "nospace"      : wrestNospace(this.elements[i]); break;
                            case "numeric"      : wrestNumeric(this.elements[i]); break; 
                            case "alpha"        : wrestAlpha(this.elements[i]); break; 
                            case "alphanumeric" : wrestAlphaNumeric(this.elements[i]); break; 
                            case "jumin"        : wrestJumin(this.elements[i]); break; 
                            case "saupja"       : wrestSaupja(this.elements[i]); break; 
                            default : break;
                        }
                    }
                }
            }
        }

        // null
        // 
        if (wrestFld != null) {
            alert(wrestMsg);
            wrestFld.style.backgroundColor = wrestFldBackColor;
            wrestFld.focus();
            return false;
        }

        if (this.oldsubmit && this.oldsubmit() == false)  {
            return false;
        }

        return true;
    }

    //  onsubmit
    function wrestInitialized()
    {
        for (var i = 0; i < document.forms.length; i++) {
            // onsubmit 
            if (document.forms[i].onsubmit) document.forms[i].oldsubmit = document.forms[i].onsubmit;
            document.forms[i].onsubmit = wrestSubmit;
            for (var j = 0; j < document.forms[i].elements.length; j++) {
                // 
                if (document.forms[i].elements[j].getAttribute("required") != null) {
                    document.forms[i].elements[j].style.backgroundColor = wrestFldDefaultColor;
                    /*
                    document.forms[i].elements[j].className = "wrest_required";
                    document.forms[i].elements[j].style.backgroundPosition = "top right";
                    document.forms[i].elements[j].style.backgroundRepeat = "no-repeat";
                    */
                }
            }
        }
    }

    wrestInitialized();

}