/**
 * a simple Tip class
 *
 * @type      : class
 * @Parameter : a_sId: tip element id
 *          a_sStyle: the style of tip element
 *        a_sContent: the content of tip
 *            a_oObj: the parnet of tip element
 * @author    : cjj(http://www.imcjj.com)
 * @version   : v0.1.0 build 20080609
 * @memo      : none 
 * -----------------------------------
 * Copyright (c) cjj
 */
function Tip(a_sId, a_sStyle, a_sContent, a_oObj, a_sElementName,  a_sStruct) {
    this._insertDirection=1;
    this._struct="{#text#}";
    this._elementName="SPAN";

    if(a_sElementName) this._elementName=a_sElementName;
    if(a_sStruct) this._struct=a_sStruct;//    this._struct='     <div class="content">{#text#}</div>\n    <div class="arrow">&nbsp;</div>\n';
   
    this._tips={};
    this.add=Tip_Add;
    this.show=Tip_Show;
    this.hide=Tip_Hide;

    if(a_sId&&a_sStyle&&a_sContent) {
        var oElement=document.getElementById(a_sId);
    
        if(oElement) {
            if(a_bStatus) oElement.style.display='';
            else oElement.style.display='none';

            if(oElement.getElementsByTagName("DIV").length<1) oElement.innerHTML=this._struct.replace(/\{#text#\}/g,a_sContent);
        }
        else {
            oElement=document.createElement("span");//            oElement=document.createElement("DIV");
            oElement.className=a_sStyle;
            oElement.id=a_sId;
            oElement.innerHTML=this._struct.replace(/\{#text#\}/g,a_sContent);

            if(typeof(a_oObj)!="object") document.body.appendChild(oElement);
            else
                switch(this._insertDirection){//节点插入的方向
                case 0:a_oObj.insertBefore(oElement,a_oObj.firstChild);break;
                default:a_oObj.appendChild(oElement);break;
                }
        }

        this._tips[a_sId]=oElement;
    }
}

//add new tip
function Tip_Add(a_sId, a_sStyle, a_sContent, a_oObj, a_sElementName, a_sStruct) {
    if(!(a_sId&&a_sStyle&&a_sContent)) return;

    var oElement=document.getElementById(a_sId);
    var sStruct=this._struct;

    if(a_sStruct) sStruct=a_sStruct;

    if(oElement) {
     //   if(a_bStatus) oElement.style.display='';
     //   else oElement.style.display='none';
        oElement.style.display='none';
        

        if(oElement.getElementsByTagName("DIV").length<1) oElement.innerHTML=sStruct.replace(/\{#text#\}/g,a_sContent);
    }
    else {
        if(a_sElementName) oElement=document.createElement(a_sElementName);
        else oElement=document.createElement(this._elementName);

        oElement.className=a_sStyle;
        oElement.id=a_sId;
        oElement.innerHTML=sStruct.replace(/\{#text#\}/g,a_sContent);

        if(typeof(a_oObj)!="object") document.body.appendChild(oElement);
        else
            switch(this._insertDirection){
            case 0:a_oObj.insertBefore(oElement,a_oObj.firstChild);break;
            default:a_oObj.appendChild(oElement);break;
            }
    }

    this._tips[a_sId]=oElement;
}

//show tip
function Tip_Show(a_sId, a_oObj) {
   var oTip=this._tips[a_sId], oObj=null;

   if(!oTip) return;
   
   oTip.style.display='';
}

//hide tip
function Tip_Hide(a_sId) {
    var oTip=this._tips[a_sId];

    if(!oTip) return;
 
    oTip.style.display = 'none';
}

 /**
 * FormValidate
 *
 * @type      : class
 * @parameter : a_sName, the form name attribute or id attribute
 * @author    : cjj(http://www.imcjj.com)
 * @version   : v1.0.0 build 20070613
 * @memo      :
 * -----------------------------------
 * Copyright (c) imcjj.com
 */
function FormValidate(a_sName) {
    var oForm=document.getElementById(a_sName);

    if(!oForm) oForm=document.forms[a_sName];
    if(!oForm) return null;//未找到表单

    this._form=oForm;
    this._rules=[];//设置表单元素验证集合
    this._classes={};//元素class

    //默认支持的表单验证
    this._validates={
        "isNotNull":[/[\S]+/,"r",{"style":"tip_01","content":"不能为空"}],
        "isNumber":[/^\d+$/,"r",{"style":"tip_01","content":"是否全部为数字"}],
        "isLetter":[/^[A-Za-z0-9 ]+$/,"r",{"style":"tip_01","content":"是否全部为字母?"}],
        "isChinese":[/^[\u0391-\uFFE5]+$/,"r",{"style":"tip_01","content":"是否全部为汉字?"}],
        "isMail":[/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/,"r",{"style":"tip_01","content":"邮件地址是否正确?"}], 
        "isMobile":[/^((\(\d{2,3}\))|(\d{3}\-))?13\d{9}$/,"r",{"style":"tip_01","content":"手机号码是否正确?"}],
        "isTel":[/^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/,"r",{"style":"tip_01","content":"电话或传真号码是否正确?"}],
        "isZip":[/^[1-9]\d{5}$/,"r",{"style":"tip_01","content":"邮政编码是否正确?"}],
        "isURL":[/^http|ftp:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/,"r",{"style":"tip_01","content":"网页地址是否正确?"}],
        "isExists":[_isExists,"f",{"style":"tip_01","content":"相关信息已经存在"}],
        "isLen":[_isLen,"f",{"style":"tip_01","content":"输入的字符长度不符合要求"}],
        "isSame":[_isSame,"f",{"style":"tip_01","content":"输入的内容不同"}]
    };

    this._validate=FormValidate_Validate;
    this.addRule=FormValidate_addRule;//增加表单元素验证规则    
    this.addValidate=FormValidate_addValidate;//添加外部验证
    this.listen=FormValidate_Listen;//表单验证监听
}

/**
 * 表单验证外部函数
 *
 * @type：公共函数
 * @Parameter：a_sName:验证名称
 *        a_oHandler:执行验证功能的对象
 *        a_sType: 验证功能对象的类型 r:正则, f:函数
 *        a_oTip: 验证失败时的提示信息对象
 * @return：无
 * @note：
 */
function FormValidate_addValidate(a_sName,a_oHandler,a_sType, a_oTip) {this._validates[a_sName]=[a_oHandler,a_sType, a_oTip];}

/**
 * 监听表单，当表单提交时，进行验证
 *
 * @type：公共函数
 * @Parameter：无
 * @return：无
 * @note：
 */
function FormValidate_Listen() {
    var oForm=this._form;

    if(!oForm) return;

    var oObj=this;

    oForm.submit=function() {if(oObj._validate("FormValidate_#@submit")) oForm.submit();};
    oForm.onsubmit=function(){if(oObj._validate("FormValidate_#@submit")) return true;return false;};
}

function FormValidate_Validate(a_oObj) {//表单提交时进行验证
    var oValidates=this._validates, oRules=this._rules, oClasses=this._classes;
    var oObj, oMsg, oRule, oElement, oValidate;
    var bReturn=true, bResult=true;
    var aResults, aMsgs;
    var sStr="", sTag="", sIndex="", sType="", siteid="";
    var j=0;
  
    if(typeof(a_oObj)=="string") {sType=a_oObj;}

    if(sType=="") {
        oRule = a_oObj;
        oElement=oRule.Element;
        sTag=oElement.tagName;
        siteid="";
        if(oElement.id) siteid=oElement.id;
        bResult=false;

        switch(sTag) {
        case "SELECT":
            sStr=oElement.options[oElement.selectedIndex].value;
            break;
        default:
            sStr=oElement.value;
            break;
        }

        if(!oRule.mustInput) {//选填
            oValidate=oValidates["isNotNull"];//是否输入内容
            if(!oValidate[0].test(sStr)) {oRule.Element.className=oClasses[siteid];oRule.tip.hide("tip_"+siteid);return;}
        }

        oValidate=oValidates[oRule.Name];
        sStr=sStr.replace(/\'/g,"\\'");
	
        switch(oValidate[1]) {
        case "f"://函数
            if(oRule.parameters.length>0) {bResult=eval("oValidate[0]("+ oRule.parameters.join(',') +",'"+sStr+"')");}
            else {bResult=oValidate[0](sStr);}

            break;
        default://"r"
            bResult=oValidate[0].test(sStr);
            break;
        }

        oTip=oRule.tip;
        oRule.validateResult=bResult;
        oRules[i]=oRule;

        if(!bResult) {//表单验证结果
            bReturn=false;
            oRule.Element.className="Msg_Background";
            oTip.show("tip_"+siteid);
        }
        else {
            oRule.Element.className=oClasses[siteid];
            oTip.hide("tip_"+siteid);
        }// end if
    }

    if(sType!=""){
        for(var i=0;i<oRules.length;i++) {
            oRule = oRules[i];
            oElement=oRule.Element;
            siteid=""

            if(!oElement) continue;
            if(oElement.id) siteid=oElement.id;

            sTag=oElement.tagName;
            bResult=false;

            switch(sTag) {
            case "SELECT":
                sStr=oElement.selectedIndex;
                break;
            default:
                sStr=oElement.value;
                break;
            }

            if(!oRule.mustInput) {//选填
                oValidate=oValidates["isNotNull"];//是否输入内容
                if(!oValidate[0].test(sStr)) {oRule.Element.className=oClasses[siteid];oRule.tip.hide("tip_"+siteid);continue;}
            }

            sStr=sStr.replace(/\'/g,"\\'");
            oValidate=oValidates[oRule.Name];
            switch(oValidate[1]) {
            case "f":
                if(oRule.parameters.length>0) {bResult=eval("oValidate[0]("+ oRule.parameters.join(',') +",'"+sStr+"')");}
                else {bResult=oValidate[0](sStr);}
                break;
            default://"r"
                switch(sTag) {
                case "SELECT":          
                     if(parseInt(sStr)>0) bResult=true;

                     break;
                default:
                    bResult=oValidate[0].test(sStr);
                    break;
                }

                break;
            }

            oTip=oRule.tip;
            oRule.validateResult=bResult;
            oRules[i]=oRule;

            if(!bResult) {//表单验证结果
                bReturn=false;
                oRule.Element.className="Msg_Background";
                oTip.show("tip_"+siteid);
            }
			else {
                oRule.Element.className=oClasses[siteid];
                oTip.hide("tip_"+siteid);
            }// end if
        }//end for
    }//end if a_sType

    this._rules=oRules;
    return bReturn;
}

/**
 * 为表单增加验证规则
 *
 * @type：公共函数
 * @Parameter：a_sType:验证类型
 *      a_sElement: 元素名称
 * @return：无
 * @note：
 */
function FormValidate_addRule(a_sRuleName, a_sElementName, a_aParameters, a_oTip) {
    var oRules = this._rules;
    var oObj=this;
    var oForm=this._form;
    var iLen = oRules.length, i;
    var oElement, oRule, oClasses=this._classes, oValidates=this._validates, oElements=[], oElmIDs=a_sElementName.split(",");
    var sIndex="", siteid;

    for(i=0;i<oElmIDs.length;i++) {
        siteid=oElmIDs[i].replace(/\s/,"");
        oElement=oForm.elements[siteid.replace("*","")];

        if(oElement) {oClasses[siteid.replace("*","")]=oElement.className;oElements[siteid]=oElement;}
    }

    var oTip;

     if(a_oTip) oTip=a_oTip;
     else oTip=this._validates[a_sRuleName][2];
 
    oRule=new TRule(a_sRuleName,oElements, oTip, a_aParameters);
    oRules.push(oRule);

    for(sIndex in oElements) {
        oElement=oElements[sIndex];
        oElement.onblur=function(){oObj._validate(oRule);};//失去焦点时验证表单元素
    }//end for

    this._classes=oClasses;
    this._rules=oRules;
}

/**
 * 规则对象
 *
 * @type：类
 * @Parameter：a_sType:规则类型
 *        a_oElement:规则相关的元素
 *        a_oTip:验证失败提示消息对象
 * @return：无
 * @note：
 */
function TRule(a_sType, a_oElements, a_oTip, a_aParameters) {
    var oPNode, oTip;
    var i=0;
    var sIndex="", siteid="";
    var bMustInput=false;

    for(sIndex in a_oElements) {
        i++;
        if(i>0) break;
    }

    if(sIndex=="") {return;}
    if(sIndex.substring(0,1)=="*") bMustInput=true;
    if(bMustInput) siteid=sIndex.substring(1,sIndex.length);
    else siteid=sIndex;

    oPNode=a_oElements[sIndex].parentNode;
    oTip= new Tip("tip_"+siteid, a_oTip.style, a_oTip.content, oPNode);
    oTip.hide("tip_"+siteid);

    this.Elements=a_oElements;
    this.Element=a_oElements[sIndex];
    this.mustInput=false;//默认非必填
    if(sIndex.substring(0,1)=="*") {this.mustInput=true;}//必填
    this.Name=a_sType;
    this.tip=oTip;
    this.validateResult=null;
    this.parameters=a_aParameters;
}

/**
 * 验证内容是否已存在,ajax应用
 *
 * @type：函数
 * @Parameter：a_sURL
 * @return：无
 * @note：
 */
function _isExists(a_sURL,a_sValue) {
    var bResult=false;
    var oXmlHttp = null;

    if (window.XMLHttpRequest) {//non IE
        oXmlHttp=new XMLHttpRequest();

        if(oXmlHttp.overrideMimeType){oXmlHttp.overrideMimeType('text/plain');}
    }
    else if(window.ActiveXObject) { //IE
        try { oXmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); }
        catch (e) {
            try { oXmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); } 
            catch (e) {}
        }
    }

    oXmlHttp.open("post",a_sURL+"?"+a_sValue,false);
    oXmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); 
    oXmlHttp.setRequestHeader("Content-Length",a_sValue.length); 
    oXmlHttp.send(a_sValue);

    if (oXmlHttp.readyState == 4) {
        if (oXmlHttp.status == 200) {
            if(oXmlHttp.responseText=="0"){bResult=true;}
        }
        else { alert("HTTP错误: "+oXmlHttp.status);}
    }

    if(oXmlHttp.responseText=="0"){bResult=true;}

    return bResult;
}// end function _isExists

function _isLen(a_iMinLen,a_iMaxLen,a_sValue){//验证内容长度
    var oReg=new RegExp("^\\S{"+a_iMinLen+","+a_iMaxLen+"}$","g");

    return oReg.test(a_sValue);
}

function _isSame(a_sElementId, a_sValue) {
    var bResult=false;
    var oElement=document.getElementById(a_sElementId);

    if(!oElement) return bResult;
    if(oElement.value==a_sValue) bResult=true;

    return bResult;
}