/*

使用方法：在要验证的表单(form)中加上 onsubmit="return validator(this)"
在要验证的表单元件中设置元件，checks(验证规则),warning（提示消息），多个验证使用|作为分隔！


验证规则参数：
	required 必填
	equal    和另一元件对比值是否相同,对比的元件名在元件加上属性equalName
	gt 	 和另一元件对比值是否大于另一元件值,对比的元件名在元件加上属性equalName
	isNumber 是否为数字
	isInt    是否为整形
	isTime   是否为时间格式
	isDate   是否为日期格式
	isEmail  必须是Email格式
	
	isPhone  是否为电话号码
	isMobile 是否为手机号码
	isIdCard 是否为身份证号码
	isMoney  是否为货币值
	isZip    是否是邮件编码
	isQQ     是否是QQ
	isEnglish 是否是english
	isChinese 是否是中文
	isUrl     是否是url
	compare   对比两个值
	limit     长度限制
	range     值范围限制
	requireChecked 单选、复选框必须选择
	filter         扩展名限制
        isNo               值不等于

	regexp    自定义正则判断
	custom    自定义函数判断
	*/
function check_reset(tipword)
{
	if (confirm(tipword))return true;
	else return false;
}

var FormValid = function(frm) {
    this.frm = frm;
    this.errMsg = new Array();
	this.errName = new Array();
   
    this.required = function(inputObj) {
        if (typeof(inputObj) == "undefined" || inputObj.value.trim() == "") {
            return false;
        }
		return true;
    }
    
	this.requiredN = function(inputObj) {
		var myReg = /^\S+$/;
  		var testValue = inputObj.value;

		if (typeof(inputObj) == "undefined" || inputObj.value.trim() == "") {
            return false;
        }
		
		if(myReg.test(testValue)) return true;
  		else return false;
	}
	
    this.equal = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('equalName')];
		
        if (fstObj != null && sndObj != null) {
            if (fstObj.value != sndObj.value) {
               return false;
            }
        }
		return true;
    }

    this.gt = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('equalName')];
		
        if (fstObj != null && sndObj != null && fstObj.value.trim()!='' && sndObj.value.trim()!='') {
            if (fstObj.value <= sndObj.value) {
                 return false;
            }
        }
		return true;
    }

	this.compare = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('objectName')];
        if (fstObj != null && sndObj != null && fstObj.value.trim()!='' && sndObj.value.trim()!='') {
            if (!eval('fstObj.value' + inputObj.getAttribute('operate') + 'sndObj.value')) {
                 return false;
            }
        }
		return true;
	}
	
	this.limit = function (inputObj) {
		var len = inputObj.value.length;
		if (len) {
			var minv = inputObj.getAttribute('min');
			var maxv = inputObj.getAttribute('max');
			minv = minv || 0;
			maxv = maxv || Number.MAX_VALUE;
			return minv <= len && len <= maxv;
		}
		return true;
	}
	
	this.range = function (inputObj) {
		var val = parseInt(inputObj.value);
		if (inputObj.value) {
			var minv = inputObj.getAttribute('min');
			var maxv = inputObj.getAttribute('max');
			minv = minv || 0;
			maxv = maxv || Number.MAX_VALUE;
		
			return minv <= val && val <= maxv;
		}
		return true;
	}
	
	this.requireChecked = function (inputObj) {
		var minv = inputObj.getAttribute('min');
		var maxv = inputObj.getAttribute('max');
		minv = minv || 1;
		maxv = maxv || Number.MAX_VALUE;
	
		var checked = 0;
		var groups = document.getElementsByName(inputObj.name);
		
		for(var i=0;i<groups.length;i++) {
			if(groups[i].checked) checked++;
			
		}
		return minv <= checked && checked <= maxv;
	}
	
	this.filter = function (inputObj) {
		var value = inputObj.value;
		var allow = inputObj.getAttribute('allow');
		if (value.trim()) {
			return new RegExp("^.+\.(?=EXT)(EXT)$".replace(/EXT/g, allow.split(/\s*,\s*/).join("|")), "gi").test(value);
		}
		return true;
	}
	
	this.isNo = function (inputObj) {
		var value = inputObj.value;
		var noValue = inputObj.getAttribute('noValue');
		return value!=noValue;
	}
    this.checkReg = function(inputObj, reg, msg) {
        inputObj.value = inputObj.value.trim();

        if (inputObj.value == '') {
            return;
        } else {
            if (!reg.test(inputObj.value)) {
				this.addErrorMsg(inputObj.name,msg);
			}
        }
    }

    this.passed = function() {
        if (this.errMsg.length > 0) {
            FormValid.showError(this.errMsg,this.errName);
            frt = document.getElementsByName(this.errName[0])[0];
			
			if (frt.type!='radio' && frt.type!='checkbox') {
				frt.focus();
			}
            return false;
        } else {
          return true;
        }
    }

    this.addErrorMsg = function(name,str) {
        this.errMsg.push(str);
		this.errName.push(name);
    }
	
    this.addAllName = function(name) {
		FormValid.allName.push(name);
    }
	
}
FormValid.allName = new Array();
FormValid.showError = function(errMsg) {
	var msg = "";
	for (i = 0; i < errMsg.length; i++) {
		msg += "- " + errMsg[i] + "\n";
	}

	alert(msg);
}
function CheckForm(frm) {
	var formElements = frm.elements;
	var fv = new FormValid(frm);
	for (var i=0; i<formElements.length;i++) {
		var validType = formElements[i].getAttribute('checks');
		var errorMsg = formElements[i].getAttribute('warning');
		if (validType==null) continue;
		fv.addAllName(formElements[i].name);

		var vts = validType.split('|');
		var ems = errorMsg.split('|');
		for (var j=0; j<vts.length; j++) {
			var curValidType = vts[j];
			var curErrorMsg = ems[j];
			
			switch (curValidType) {
			case 'isNumber':
			case 'isEmail':
			case 'isPhone':
			case 'isMobile':
			case 'isIdCard':
			case 'isMoney':
			case 'isZip':
			case 'isQQ':
			case 'isInt':
			case 'isEnglish':
			case 'isChinese':
			case 'isUrl':
			case 'isDate':
			case 'isTime':
				fv.checkReg(formElements[i],RegExps[curValidType],curErrorMsg);
				break;
			case 'regexp':
				fv.checkReg(formElements[i],new RegExp(formElements[i].getAttribute('regexp'),"g"),curErrorMsg);
				break;
			case 'custom':
				if (!eval(formElements[i].getAttribute('custom')+'(formElements[i],formElements)')) {
					fv.addErrorMsg(formElements[i].name,curErrorMsg);
				}
				break;
			default :
				if (!eval('fv.'+curValidType+'(formElements[i],formElements)')) {
					fv.addErrorMsg(formElements[i].name,curErrorMsg);
				}
				break;
			}
		}
	}
	return fv.passed();
}
String.prototype.trim = function() {
	return this.replace(/^\s*|\s*$/g, "");
}
var RegExps = function(){};
RegExps.isNumber = /^[-\+]?\d+(\.\d+)?$/;
RegExps.isEmail = /([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)/;
RegExps.isPhone = /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/;
RegExps.isMobile = /^((\(\d{2,3}\))|(\d{3}\-))?13\d{9}$/;
RegExps.isIdCard = /(^\d{15}$)|(^\d{17}[0-9Xx]$)/;
RegExps.isMoney = /^\d+(\.\d+)?$/;
RegExps.isZip = /^[1-9]\d{5}$/;
RegExps.isQQ = /^[1-9]\d{4,10}$/; 
RegExps.isInt = /^[-\+]?\d+$/;
RegExps.isEnglish = /^[A-Za-z]+$/;
RegExps.isChinese =  /^[\u0391-\uFFE5]+$/;
RegExps.isUrl = /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/;
RegExps.isDate = /^\d{4}-\d{1,2}-\d{1,2}$/;
RegExps.isTime = /^\d{4}-\d{1,2}-\d{1,2}\s\d{1,2}:\d{1,2}:\d{1,2}$/;