/*
  -------------------------------------------------------------------------
	                    JavaScript Form Validator 
                                Version 2.0.2
	Copyright 2003 JavaScript-coder.com. All rights reserved.
	You use this script in your Web pages, provided these opening credit
    lines are kept intact.
	The Form validation script is distributed free from JavaScript-Coder.com

	You may please add a link to JavaScript-Coder.com, 
	making it easy for others to find this script.
	Checkout the Give a link and Get a link page:

    You may not reprint or redistribute this code without permission from 
    JavaScript-Coder.com.
	
	JavaScript Coder
	It precisely codes what you imagine!
	Grab your copy here:
    -------------------------------------------------------------------------  
*/
function Validator(frmname)
{
    this.formobj = document.forms[frmname];
    if (!this.formobj)
    {
        alert("BUG: couldnot get Form object " + frmname);
        return;
    }
    if (this.formobj.onsubmit)
    {
        this.formobj.old_onsubmit = this.formobj.onsubmit;
        this.formobj.onsubmit = null;
    }
    else
    {
        this.formobj.old_onsubmit = null;
    }
    this.formobj.onsubmit = form_submit_handler;
    this.addValidation = add_validation;
    this.setAddnlValidationFunction = set_addnl_vfunction;
    this.clearAllValidations = clear_all_validations;
}
function set_addnl_vfunction(functionname)
{
    this.formobj.addnlvalidation = functionname;
}
function clear_all_validations()
{
    for (var itr = 0; itr < this.formobj.elements.length; itr++)
    {
        this.formobj.elements[itr].validationset = null;
    }
}
function form_submit_handler()
{
    for (var itr = 0; itr < this.elements.length; itr++)
    {
        if (this.elements[itr].validationset &&
            !this.elements[itr].validationset.validate())
        {
            return false;
        }
    }
    if (this.addnlvalidation)
    {
        str = " var ret = " + this.addnlvalidation + "()";
        eval(str);
        if (!ret) return ret;
    }
    return true;
}
function add_validation(itemname, descriptor, errstr)
{
    if (!this.formobj)
    {
        alert("BUG: the form object is not set properly");
        return;
    }//if
    var itemobj = this.formobj[itemname];
    if (!itemobj)
    {
        alert("BUG: Couldnot get the input object named: " + itemname);
        return;
    }
    if (!itemobj.validationset)
    {
        itemobj.validationset = new ValidationSet(itemobj);
    }
    itemobj.validationset.add(descriptor, errstr);
}
function ValidationDesc(inputitem, desc, error)
{
    this.desc = desc;
    this.error = error;
    this.itemobj = inputitem;
    this.validate = vdesc_validate;
}
function vdesc_validate()
{
    if (!V2validateData(this.desc, this.itemobj, this.error))
    {
        this.itemobj.focus();
        this.itemobj.style.background = "#FFFFCC";
        return false;
    }
    return true;
}
function ValidationSet(inputitem)
{
    this.vSet = new Array();
    this.add = add_validationdesc;
    this.validate = vset_validate;
    this.itemobj = inputitem;
}
function add_validationdesc(desc, error)
{
    this.vSet[this.vSet.length] =
    new ValidationDesc(this.itemobj, desc, error);
}
function vset_validate()
{
    for (var itr = 0; itr < this.vSet.length; itr++)
    {
        if (!this.vSet[itr].validate())
        {
            return false;
        }
    }
    return true;
}
function validateEmailv2(email)
{
    // a very simple email validation checking.
    // you can add more complex email checking if it helps
    if (email.length <= 0)
    {
        return true;
    }
    var splitted = email.match("^(.+)@(.+)$");
    if (splitted == null) return false;
    if (splitted[1] != null)
    {
        var regexp_user = /^\"?[\w-_\.]*\"?$/;
        if (splitted[1].match(regexp_user) == null) return false;
    }
    if (splitted[2] != null)
    {
        var regexp_domain = /^[\w-\.]*\.[A-Za-z]{2,4}$/;
        if (splitted[2].match(regexp_domain) == null)
        {
            var regexp_ip = /^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
            if (splitted[2].match(regexp_ip) == null) return false;
        }// if
        return true;
    }
    return false;
}
function V2validateData(strValidateStr, objValue, strError)
{
    var epos = strValidateStr.search("=");
    var command = "";
    var cmdvalue = "";
    if (epos >= 0)
    {
        command = strValidateStr.substring(0, epos);
        cmdvalue = strValidateStr.substr(epos + 1);
    }
    else
    {
        command = strValidateStr;
    }
    switch (command) {
        case "req":
        case "required":
        {
            if (eval(objValue.value.length) == 0)
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + "：不能为空！";
                }
                if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "：不能为空！";
                }
                alert(strError);
                return false;
            }//if
            break;
        }//case required
        case "dob":
        case "double":
        {
            var exp = /^[-\+]?\d+(\.\d+)?$/;
            var test = exp.test(objValue.value);
            if (objValue.value.length > 0 && !test)
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + "：只能为数字！";
                }
                if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "：只能为数字！";
                }
                alert(strError);
                return false;
            }
            break;
        }
        case "maxlength":
        case "maxlen":
        {
            if (eval(objValue.value.length) > eval(cmdvalue))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + " : " + cmdvalue + " characters maximum ";
                }//if
                 if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "不得大于 " + cmdvalue;
                }
 		alert(strError );
                return false;
            }//if
            break;
        }//case maxlen
        case "minlength":
        case "minlen":
        {
            if (eval(objValue.value.length) < eval(cmdvalue))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + " : " + cmdvalue + " characters minimum  ";
                }//if
                alert(strError + "\n[Current length = " + objValue.value.length + " ]");
                return false;
            }//if
            break;
        }//case minlen
        case "alnum":
        case "alphanumeric":
        {
            var charpos = objValue.value.search("[^A-Za-z0-9]");
            if (objValue.value.length > 0 && charpos >= 0)
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + ": Only alpha-numeric characters allowed ";
                }//if 
                alert(strError + "\n [Error character position " + eval(charpos + 1) + "]");
                return false;
            }//if
            break;
        }//case alphanumeric
        case "num":
        case "numeric":
        {
            var charpos = objValue.value.search("[^0-9]");
            if (objValue.value.length > 0 && charpos >= 0)
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + "：只能为整数！";
                }//if               
                if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "：只能为整数！";
                }
                alert(strError);
                return false;

            }//if
            break;
        }//numeric
        case "alphabetic":
        case "alpha":
        {
            var charpos = objValue.value.search("[^A-Za-z]");
            if (objValue.value.length > 0 && charpos >= 0)
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + ": Only alphabetic characters allowed ";
                }//if                             
                alert(strError + "\n [Error character position " + eval(charpos + 1) + "]");
                return false;
            }//if
            break;
        }//alpha
        case "alnumhyphen":
        {
            var charpos = objValue.value.search("[^A-Za-z0-9\-_]");
            if (objValue.value.length > 0 && charpos >= 0)
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + ": characters allowed are A-Z,a-z,0-9,- and _";
                }//if                             
                alert(strError + "\n [Error character position " + eval(charpos + 1) + "]");
                return false;
            }//if
            break;
        }
        case "email":
        {
            if (!validateEmailv2(objValue.value))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + "：邮件格式错误！";
                }
                if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "：邮件格式错误！";
                }
                alert(strError);
                return false;
            }//if
            break;
        }//case email
	case "IDCart":
        {
        	if (!validateIDCart(objValue.value))
            {
            if (!strError || strError.length == 0)
                {
                    strError = objValue.name + "：输入错误，身份证必须15位或18位！";
                }
                if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "：输入错误，身份证必须15位或18位！";
                }
                alert(strError);
                return false;
            }
            break;
        }
        case "lt":
        case "lessthan":
        {
            if (isNaN(objValue.value))
            {
                alert(objValue.name + ": Should be a number ");
                return false;
            }//if 
            if (eval(objValue.value) >= eval(cmdvalue))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + " : value should be less than " + cmdvalue;
                }//if
                alert(strError);
                return false;
            }//if
            break;
        }//case lessthan
        case "gt":
        case "greaterthan":
        {
            if (isNaN(objValue.value))
            {
                alert(objValue.name + ": Should be a number ");
                return false;
            }//if 
            if (eval(objValue.value) <= eval(cmdvalue))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + " : value should be greater than " + cmdvalue;
                }//if
                alert(strError);
                return false;
            }//if
            break;
        }//case greaterthan
        case "telphon":{
            var patrn = /((^0[0-9]{2,3}\-)?([2-9][0-9]{6,7})+(\-[0-9]{1,4})?$)|(^((\(\d{3}\))|(\d{3}\-))?13[0-9]\d{8}|15[89]\d{8})/;
            if (objValue.value.length > 0 && !patrn.exec(objValue.value))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + "：格式错误！";
                }
                if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                    strError = strError.substring(2, strError.length - 1) + "：格式错误！";
                }
                alert(strError);
                return false;
            }
            break;
        }
        case "date":
        {
            if (objValue.value.length > 0)
            {
                str = objValue.value;
                var re = false;
                if (str.length > 10)
                {
                    var r = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/);
                    if (r == null)
                    {
                        re = false;
                    }
                    else
                    {
                        var d = new Date(r[1], r[3] - 1, r[4], r[5], r[6], r[7]);
                        re = (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4] && d.getHours() == r[5] && d.getMinutes() == r[6] && d.getSeconds() == r[7]);
                    }

                }
                if (str != null && str.length < 11)
                {
                    var r = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
                    if (r == null)
                    {
                        re = false;
                    }
                    else
                    {
                        var d = new Date(r[1], r[3] - 1, r[4]);
                        re = (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4]);
                    }
                }
                if (!re)
                {
                    if (!strError || strError.length == 0)
                    {
                        strError = objValue.name + "：时间格式错误！";
                    }
                    if (strError && strError.length > 0 && strError.lastIndexOf("#{") >= 0 && strError.lastIndexOf("}") > 0) {
                        strError = strError.substring(2, strError.length - 1) + "：时间格式错误！";
                    }
                    alert(strError);
                }
                return re;
            }
            break;
        }
        case "regexp":
        {
            if (objValue.value.length > 0)
            {
                if (!objValue.value.match(cmdvalue))
                {
                    if (!strError || strError.length == 0)
                    {
                        strError = objValue.name + ": Invalid characters found ";
                    }//if
                    alert(strError);
                    return false;
                }//if
            }
            break;
        }//case regexp
        case "dontselect":
        {
            if (objValue.selectedIndex == null)
            {
                alert("BUG: dontselect command for non-select Item");
                return false;
            }
            if (objValue.selectedIndex == eval(cmdvalue))
            {
                if (!strError || strError.length == 0)
                {
                    strError = objValue.name + ": Please Select one option ";
                }//if
                alert(strError);
                return false;
            }
            break;
        }//case dontselect
    }
    //switch
    return true;
}
/*
	Copyright 2003 JavaScript-coder.com. All rights reserved.
*/