// 表单数据验证类：FormValidator
// Create by Senty at 2008-04-09

//内置的正则表达式，可自行扩展
var matchExp = new Array();
matchExp["int"]="^([+-]?)\\d+$";
matchExp["int+"]="^([+]?)\\d+$";
matchExp["int-"]="^-\\d+$";
matchExp["num"]="^([+-]?)\\d*\\.?\\d+$";
matchExp["num+"]="^([+]?)\\d*\\.?\\d+$";
matchExp["num-"]="^-\\d*\\.?\\d+$";
matchExp["float"]="^([+-]?)\\d*\\.\\d+$";
matchExp["float+"]="^([+]?)\\d*\\.\\d+$";
matchExp["float-"]="^-\\d*\\.\\d+$";
matchExp["email"]="^\\w+((-\\w+)|(\\.\\w+))*\\@[A-Za-z0-9]+((\\.|-)[A-Za-z0-9]+)*\\.[A-Za-z0-9]+$";
matchExp["color"]="^#[a-fA-F0-9]{6}";
matchExp["url"]="^http[s]?:\\/\\/([\\w-]+\\.)+[\\w-]+([\\w-./?%&=]*)?$";
matchExp["chinese"]="^[\\u4E00-\\u9FA5\\uF900-\\uFA2D]+$";
matchExp["ascii"]="^[\\x00-\\xFF]+$";
matchExp["zipcode"]="^\\d{6}$";
matchExp["mobile"]="^0{0,1}13[0-9]{9}$";
matchExp["ip4"]="^\(([0-1]?\\d{0,2})|(2[0-5]{0,2}))\\.(([0-1]?\\d{0,2})|(2[0-5]{0,2}))\\.(([0-1]?\\d{0,2})|(2[0-5]{0,2}))\\.(([0-1]?\\d{0,2})|(2[0-5]{0,2}))$";
matchExp["notempty"]="^[^ ]+$";
matchExp["picture"]="(.*)\\.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga)$";
matchExp["rar"]="(.*)\\.(rar|zip|7zip|tgz)$";
matchExp["date"]="^\\d{4}(\\-|\\/|\.)\\d{1,2}\\1\\d{1,2}$";
matchExp["user"]="^\s*[.A-Za-z0-9_-]{3,30}\s*$";

//缺省消息
var matchMessage =	{
	"int"	:"请输入整数",											//整数
	"int+"	:"请输入正整数",										//正整数
	"int-"	:"请输入负整数",										//负整数
	"num"	:"请输入数字",											//数字
	"num+"	:"请输入正数",											//正数
	"num-"	:"请输入负整数",										//负数
	"float"	:"请输入浮点数",										//浮点数
	"float+":"请输入正浮点数",										//正浮点数
	"float-":"请输入负浮点数",										//负浮点数
	"email"	:"请输入正确的邮箱地址",								//邮件
	"color"	:"请输入正确的颜色",									//颜色
	"url"	:"请输入正确的连接地址",								//联接
	"chinese":"请输入中文",											//中文
	"ascii"	:"请输入ascii字符",										//仅ACSII字符
	"zipcode":"请输入正确的邮政编码",								//邮编
	"mobile":"请输入正确的手机号码",								//手机
	"ip4"	:"请输入正确的IP地址",									//ip地址
	"notempty":"不能有空格",										//非空
	"picture":"请选择图片",											//图片
	"rar"	:"请输入压缩文件",										//压缩文件
	"date"	:"请输入正确的日期"	,									//日期
	"user"  :"请输入正确的用户或密码或表名称"                         //用户名
}

//数据格式验证器
var FormValidator = 
{
	//检查是否为空
	CheckEmpty: function(element, message){
		if(!element.type){
			//非法元素
			alert("CheckEmpty:参数使用了非法元素");
			return;
		}
		//失去焦点后验证元素
		element.onblur = function (){
			return FormValidator.IsEmpty(this, message)
		}
	},
	
	//检查常用格式
	Match: function(element, matchName, message){
		if(!element.type){
			//非法元素
			alert("CheckEmpty:参数使用了非法元素");
			return;
		}
		//失去焦点后验证元素
		element.onblur = function (){
			if(!message){
				message = matchMessage[matchName];
			}
			return FormValidator.IsMatch(this, matchExp[matchName], message);
		}
	},
	
	
	//检查自定义格式
	MacthRegExp: function(element, regExp, message){
		if(!element.type){
			//非法元素
			alert("CheckEmpty:参数使用了非法元素");
			return;
		}
		//失去焦点后验证元素
		element.onblur = function (){
			return FormValidator.IsMatch(this, regExp, message);
		}
	},
	
	//不能为空，也不能格式错误
	CheckEmptyAndMatch: function(element, regExp, emptyMessage, errorMessage){
		if(!element.type){
			//非法元素
			alert("CheckEmpty:参数使用了非法元素");
			return;
		}
		//失去焦点后验证元素
		element.onblur = function (){
			if(!FormValidator.IsEmpty(this, emptyMessage)){
				return FormValidator.IsMatch(this, regExp, errorMessage);
			}else{
				return false;
			}
		}
	},
	
	//比较两输入值
	Compare: function(original, element, message){
		if(!element.type || !original.type){
			//非法元素
			alert("Compare:参数使用了非法元素");
			return;
		}
		//失去焦点后验证元素
		element.onblur = function (){
			return FormValidator.IsEqual(original, this, message);
		}
	},
	
	//检查是否为空
	IsEmpty: function(element, message){
		if(element.value.trim() == ""){
			if(element.type=="file" && document.getElementById('old_'+element.name).value!=""){
              FormValidator.Valid(element);
			  return false;
			}
			FormValidator.Invalid(element, message);
			return true;
		}else{
			FormValidator.Valid(element);
			return false;
		}
	},
	
	//检查格式是否为正确
	IsMatch: function(element, regExp, message){
		//如为空值不进行检查
		if(element.value.trim() == ""){
			FormValidator.Valid(element);
			return true;
		}
		try{
			var reg = new RegExp(regExp,"i");
			if(!reg.test(element.value.trim())){
				FormValidator.Invalid(element, message);
				return false;
			}else{
				FormValidator.Valid(element);
				return true;
			}
		}catch(error){
			//非法常用格式
			alert("regExp:非法表达式");
			return false;
		}
	},

	//比较两输入值是否一致
	IsEqual: function(original, element, message){
		//如没指定比如对象，提示错误
		if(!original){
			alert("Compare:未指定比较对象");
			return false;
		}
		if(element.value.trim() == original.value.trim()){
			FormValidator.Valid(element);
			return true;
		}else{
			FormValidator.Invalid(element, message);
			return false;
		}
	},
	
	//控件格式无效
	Invalid: function(element, message){
		//保存原来的样式
		if(element.getAttribute("OldClassName") == null){
			element.setAttribute("OldClassName", element.className);
		}
		//输入框显示无效状态
		element.className = "InvalidInput";
	
		//显示提示文字
		var invalidMsg = document.getElementById(element.id + "_InvalidMsg");
		if(invalidMsg){
			invalidMsg.style.display = "";
			invalidMsg.innerHTML = message;
		}else{
			invalidMsg = document.createElement("SPAN");
			element.parentNode.appendChild(invalidMsg);
			invalidMsg.id = element.id + "_InvalidMsg";
			invalidMsg.className = "InvalidInputMsg";
			invalidMsg.innerHTML = message;
		}
	},
	
	//控件格式有效
	Valid: function(element){
		if(element.getAttribute("OldClassName") != null){
			//恢复原来的样式
			element.className = element.getAttribute("OldClassName");
			var invalidMsg = document.getElementById(element.id + "_InvalidMsg");
			if(invalidMsg){
				invalidMsg.style.display = "none";
			}
		}
		
	},
	
	//检查表单
	CheckForm: function(form){
		form.IsValid = true;
		var elements = form.elements;
		//循环查找
		for(i=0; i<elements.length; i++){
			var elem = elements[i];
			//if(elem.tagName!='INPUT' && elem.tagName!='textarea')continue;
			var noEmpty = elem.getAttribute("NotEmpty");
			var matchName = elem.getAttribute("Match");
			var regExp = elem.getAttribute("RegExp");
			var compare = elem.getAttribute("Compare");
			//优先检查空值且有格式的验证
			if(noEmpty == "true" && matchName){
				//不能空，且须匹配格式
				if(!FormValidator.IsEmpty(elem, elem.getAttribute("EmptyMessage"))){
					var errmsg = elem.getAttribute("ErrorMessage");
					if(!errmsg){
						errmsg = matchMessage[matchName];
					}
					if(!FormValidator.IsMatch(elem, matchExp[matchName], errmsg)){
						//验证格式非法
						form.IsValid = false;
					}
				}else{
					//验证是空值
					form.IsValid = false;
				}
			}
			//优先检查空值且有格式的验证
			else if(noEmpty == "true" && regExp){
				//不能空，且须匹配格式
				if(!FormValidator.IsEmpty(elem, elem.getAttribute("EmptyMessage"))){
					if(!FormValidator.IsMatch(elem, regExp, elem.getAttribute("ErrorMessage"))){
						//验证格式非法
						form.IsValid = false;
					}
				}else{
					//验证是空值
					form.IsValid = false;
				}
			}
			//验证空值
			else if(noEmpty == "true"){
				if(FormValidator.IsEmpty(elem, elem.getAttribute("EmptyMessage"))){
					//验证是空值
					form.IsValid = false;
				}
			}
			//验证常用格式
			else if(matchName){
				var errmsg = elem.getAttribute("ErrorMessage");
				if(!errmsg){
					errmsg = matchMessage[matchName];
				}
				if(!FormValidator.IsMatch(elem, matchExp[matchName], errmsg)){
					//验证格式非法
					form.IsValid = false;
				}
			}
			//验证自定义格式
			else if(regExp){
				if(!FormValidator.IsMatch(elem, regExp, elem.getAttribute("ErrorMessage"))){
					//验证格式非法
					form.IsValid = false;
				}
			}
			//验证输入是否一致
			else if(compare){
				if(!FormValidator.IsEqual(document.getElementById(compare), elem, elem.getAttribute("ErrorMessage"))){
					//验证两输入不一致
					form.IsValid = false;
				}
			}
			
			//如果有错，则停止检查
			if(form.IsValid==false){
				elem.focus();
				return false;
			}
		}
		return form.IsValid;
	}	
}


//扩展String的方法：trim
String.prototype.trim = function String$trim() {
    if (arguments.length !== 0) {alert("String.trim:参数过多");return;};
    return this.replace(/^\s+|\s+$/g, '');
}

//初始化
function InitForm(tag){
	for(var f=0; f<document.forms.length; f++){
		var form = document.forms[f];
		//初始化需要验证数据的表单元素
		if(form.getAttribute("UseValidator") == "true"){
			var elements = form.getElementsByTagName(tag);
			//循环查找
			for(i=0; i<elements.length; i++){
				var elem = elements[i];
				var noEmpty = elem.getAttribute("NotEmpty");
				var matchName = elem.getAttribute("Match");
				var regExp = elem.getAttribute("RegExp");
				var compare = elem.getAttribute("Compare");
				
				//优先检查空值且有格式的验证
				if(noEmpty == "true" && matchName){
					var errmsg = elem.getAttribute("ErrorMessage");
					if(!errmsg){
						errmsg = matchMessage[matchName];
					}
					FormValidator.CheckEmptyAndMatch(elem, matchExp[matchName], elem.getAttribute("EmptyMessage"), elem.getAttribute("ErrorMessage"));
				}
				//优先检查空值且有格式的验证
				else if(noEmpty == "true" && regExp){
					FormValidator.CheckEmptyAndMatch(elem, regExp, elem.getAttribute("EmptyMessage"), elem.getAttribute("ErrorMessage"));
				}
				//验证空值
				else if(noEmpty == "true"){
					FormValidator.CheckEmpty(elem, elem.getAttribute("EmptyMessage"));
				}
				//验证常用格式
				else if(matchName){
					FormValidator.Match(elem, matchName, elem.getAttribute("ErrorMessage"));
				}
				//验证自定义格式
				else if(regExp){
					FormValidator.MacthRegExp(elem, regExp, elem.getAttribute("ErrorMessage"));
				}
				//验证输入是否一致
				else if(compare){
					FormValidator.Compare(document.getElementById(compare), elem, elem.getAttribute("ErrorMessage"));
				}
				
			}
		}
	}
}	

//初始化表单
InitForm("INPUT");
InitForm("textarea");

//生成提交表单
function SendForm(action,fn){
	if(action=='DelSel'){
		if(!confirm('真的删除选择吗？'))return false;
	}
	var f=document.getElementById('listform');
	//检查有无选择    

	f.action.value=action;
	f.setFieldName.value=fn;
	if(action=='Moveing'){f.setFieldValue.value=document.getElementById(fn).value;}
	f.submit();
}