var FormValid = function(frm) {
	this.frm = frm;
	this.errMsg = new Array();
	this.errName = new Array();

	// 输入值不能为空
	this.required = function(inputObj) {
		if (typeof (inputObj) == "undefined" || inputObj.value.trim() == "") {
			return false;
		}
		return true;
	};

	this.mustOne = function(inputObj) {
		var fstObj = inputObj;

		if (fstObj != null) {
			for (var i = 0; i < fstObj.value.length; i++) {
				if (fstObj.value.charAt(i) == "1") {
					return true;
				}
			}
		}

		return false;
	};

	this.equal = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName')];

		if (fstObj != null && sndObj != null) {
			if (fstObj.value != sndObj.value) {
				return false;
			}
		}
		return true;
	};

	// 数字对比，输入值要大于对比值
	this.numgt = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			if (fstObj.value - sndObj.value < 0) {
				return false;
			}
		}
		return true;
	};

	// 数字对比，输入值要小于对比值
	this.numdt = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			if (fstObj.value - sndObj.value > 0) {
				return false;
			}
		}
		return true;
	};

	// 数字对比,输入值不能等于对比值
	this.noequal = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			if (fstObj.value == sndObj.value) {
				return false;
			}
		}
		return true;
	};

	// 输入值大于对比日期
	this.gt = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var i = "";
			if (fstObj.value.indexOf('-') > 0) {
				i = '-';
			} else if (fstObj.value.indexOf('/') > 0) {
				i = '/';
			} else if (fstObj.value.indexOf('.') > 0) {
				i = '.';
			}
			var fs = fstObj.value.split(i);
			var fsYear = fs[0];
			var fsMonth = fs[1];
			var fsDay = fs[2];
			var sn = sndObj.value.split('-');
			var snYear = sn[0];
			var snMonth = sn[1];
			var snDay = sn[2];
			if (fsYear - snYear < 0) {
				return false;
			} else if (fsYear == snYear && fsMonth - snMonth < 0) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth
					&& fsDay - snDay <= 0) {
				return false;
			}
		}
		return true;
	};

	// 输入值大于等于对比日期
	this.dt = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName1')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var i = "";
			if (fstObj.value.indexOf('-') > 0) {
				i = '-';
			} else if (fstObj.value.indexOf('/') > 0) {
				i = '/';
			} else if (fstObj.value.indexOf('.') > 0) {
				i = '.';
			} else {
				if (fstObj.value - sndObj.value > 0)
					return false;
			}
			var fs = fstObj.value.split(i);
			var fsYear = fs[0];
			var fsMonth = fs[1];
			var fsDay = fs[2];
			var sn = sndObj.value.split('-');
			var snYear = sn[0];
			var snMonth = sn[1];
			var snDay = sn[2];
			if (fsYear - snYear < 0) {
				return false;
			} else if (fsYear == snYear && fsMonth - snMonth < 0) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth
					&& fsDay - snDay < 0) {
				return false;
			}
		}
		return true;
	};

	// 输入值小于对比日期
	this.today = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName2')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var i = "";
			if (fstObj.value.indexOf('-') > 0) {
				i = '-';
			} else if (fstObj.value.indexOf('/') > 0) {
				i = '/';
			} else if (fstObj.value.indexOf('.') > 0) {
				i = '.';
			}
			var fs = fstObj.value.split(i);
			var fsYear = fs[0];
			var fsMonth = fs[1];
			var fsDay = fs[2];
			var sn = sndObj.value.split('-');
			var snYear = sn[0];
			var snMonth = sn[1];
			var snDay = sn[2];
			if (fsYear - snYear > 0) {
				return false;
			} else if (fsYear == snYear && fsMonth - snMonth > 0) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth
					&& fsDay - snDay > 0) {
				return false;
			}
			return true;
		}
		return true;
	};

	this.today2 = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName2')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var fs = fstObj.value.split('-');
			var fsYear = parseInt(fs[0]);
			var fsMonth = parseInt(fs[1]);
			var fsDay = parseInt(fs[2]);
			var sn = sndObj.value.split('-');
			var snYear = parseInt(sn[0]);
			var snMonth = parseInt(sn[1]);
			var snDay = parseInt(sn[2]);
			if (fsYear < snYear) {
				return false;
			} else if (fsYear == snYear && fsMonth < snMonth) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth && fsDay < snDay) {
				return false;
			}
		}
		return true;
	};

	this.today3 = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulName3')];
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var fs = fstObj.value.split('-');
			var fsYear = parseInt(fs[0]);
			var fsMonth = parseInt(fs[1]);
			var fsDay = parseInt(fs[2]);
			var sn = sndObj.value.split('-');
			var snYear = parseInt(sn[0]);
			var snMonth = parseInt(sn[1]);
			var snDay = parseInt(sn[2]);
			if (fsYear < snYear) {
				return false;
			} else if (fsYear == snYear && fsMonth < snMonth) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth && fsDay < snDay) {
				return false;
			}
		}
		return true;
	};

	// 验证是否为固定电话（0570~0580）
	this.gddh = function(inputObj) {
		var beg = inputObj.value.substring(0, 1);
		var beg1 = inputObj.value.substring(1, 2);
		var beg2 = inputObj.value.substring(2, 3);
		var beg3 = inputObj.value.substring(3, 4);

		if (beg == 0 && beg1 == 5 && beg2 == 8 && beg3 == 0) {
			return true;
		}

		if (beg != 0 || beg1 != 5 || beg2 != 7) {
			return false;
		}

		return true;
	};

	// 判断inputObj的值是否大于等于eqaulDate的值。若小于，则返回false，否则返回true
	this.compDate = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulDate')];

		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var fs = fstObj.value.split('-');
			var fsYear = parseInt(fs[0]);
			var fsMonth = parseFloat(fs[1]);
			var fsDay = parseFloat(fs[2]);
			var sn = sndObj.value.split('-');
			var snYear = parseInt(sn[0]);
			var snMonth = parseFloat(sn[1]);
			var snDay = parseFloat(sn[2]);
			if (fsYear < snYear) {
				return false;
			} else if (fsYear == snYear && fsMonth < snMonth) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth && fsDay < snDay) {
				return false;
			}
		}
		return true;
	};

	this.compDateGt = function(inputObj, formElements) {
		var fstObj = inputObj;
		var sndObj = formElements[inputObj.getAttribute('eqaulDate')];
		alert(sndObj.value);
		if (fstObj != null && sndObj != null && fstObj.value.trim() != ''
				&& sndObj.value.trim() != '') {
			var fs = fstObj.value.split('-');
			var fsYear = parseInt(fs[0]);
			var fsMonth = parseInt(fs[1]);
			var fsDay = parseInt(fs[2]);
			var sn = sndObj.value.split('-');
			var snYear = parseInt(sn[0]);
			var snMonth = parseInt(sn[1]);
			var snDay = parseInt(sn[2]);

			if (fsYear > snYear) {
				return false;
			} else if (fsYear == snYear && fsMonth > snMonth) {
				return false;
			} else if (fsYear == snYear && fsMonth == snMonth && fsDay > snDay) {
				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(parseFloat(fstObj.value)
					+ inputObj.getAttribute('operate')
					+ parseFloat(sndObj.value)))) {
				return false;
			}
		}
		return true;
	};

	this.limit = function(inputObj) {
		var len = inputObj.value.length;
		if (len) {
			var minv = parseInt(inputObj.getAttribute('min'));
			var maxv = parseInt(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 = parseInt(inputObj.getAttribute('min'));
			var maxv = parseInt(inputObj.getAttribute('max'));
			minv = minv || 0;
			maxv = maxv || Number.MAX_VALUE;

			return minv <= val && val <= maxv;
		}
		return true;
	};

	this.requireChecked = function(inputObj) {
		var minv = parseInt(inputObj.getAttribute('min'));
		var maxv = parseInt(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.isTelephone = function(inputObj) {
		inputObj.value = inputObj.value.trim();
		if (inputObj.value == '') {
			return true;
		} else {
			if (!RegExps.isMobile.test(inputObj.value)
					&& !RegExps.isPhone.test(inputObj.value)) {
				return false;
			}
		}
		return true;
	};

	this.checkReg = function(inputObj, reg, msg) {
		inputObj.value = inputObj.value.trim();

		if (inputObj.value == '') {
			return true;
		} else {
			return reg.test(inputObj.value);
		}
	};

	this.passed = function() {
		if (document.getElementById("htmlError"))
			$("div#htmlError").empty(); // 进入首先清除div内的提醒信息

		if (this.errMsg.length > 0) {
			FormValid.showError(this.errMsg, this.errName, this.frm.name);
			if (this.errName[0].indexOf('[') == -1) {
				frt = document.getElementsByName(this.errName[0])[0];
				if (frt.type == 'text' || frt.type == 'password') {
					// frt.focus();
				}
			}
			return false;
		} else {
			return FormValid.succeed();
		}
	};

	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 (var i = 0; i < errMsg.length; i++) {
		msg += "- " + errMsg[i] + "\n";
	}
	alert(msg);
};

FormValid.showError = function(errMsg, name, formname) {
	if (typeof (formname) != 'undefined') {
		for (key in errMsg) {
			var errorid = [ "errorMsg", key ].join("");
			var errorname = "formError";
			var error = '&nbsp;<a href="#" id="'
					+ errorid
					+ '" name="'
					+ errorname
					+ '" style="width:400px; color:#FF0000" align="left" onclick="pitchOn(this.id,'
					+ formname + ');return false;">*' + errMsg[key]
					+ '</a><br/>';
			$("div#htmlError").append(error);
			if (key == 0) {
				$('#' + errorid).click();
			}
		}
	}
};

FormValid.succeed = function() {
	return true;
};

function checklen(inputObj) {
	var lenE = inputObj.value.length;
	var lenC = 0;
	var CJK = inputObj.value.match(/[\u4E00-\u9FA5\uF900-\uFA2D]/g);
	if (CJK != null)
		lenC += CJK.length;
	tno.innerText = inputObj.maxlength - lenC - lenE;
	if (tno.innerText < 0) {
		var tmp = 0;
		var cut = inputObj.value.substring(0, inputObj.maxlength);
		for (var i = 0; i < cut.length; i++) {
			tmp += /[\u4E00-\u9FA5\uF900-\uFA2D]/.test(cut.charAt(i)) ? 2 : 1;
			if (tmp > inputObj.maxlength)
				break;
		}
		inputObj.value = cut.substring(0, i);
	}
}

function goNextText(field, event) {
	var keyCode = event.keyCode ? event.keyCode : event.which ? event.which
			: event.charCode;
	if (keyCode == 13) {
		var i;
		for (i = 0; i < field.form.elements.length; i++)
			if (field == field.form.elements[i])
				break;
		i = (i + 1) % field.form.elements.length;
		field.form.elements[i].focus();
		return false;
	} else {
		return true;
	}
}

function pitchOn(id, frm) {
	document.body.focus();
	var pitch = document.getElementById(id);
	var i = pitch.innerHTML.substring(1, pitch.innerHTML.length);
	var text = frm.elements;
	var dealId = "";
	var dealName = "";
	for (var x = 0; x < text.length; x++) {
		if (text[x].getAttribute("errmsg") != undefined) {
			var array = text[x].getAttribute("errmsg").split('|');
			if (array.length > 0) {
				for (var j = 0; j < array.length; j++) {
					if (array[j] == i) {
						if (frm.elements[x].id != 'undefined')
							dealId = frm.elements[x].id;
						if (frm.elements[x].name != 'undefined')
							dealName = frm.elements[x].name;
					}
				}
			}
		}
	}
	if (dealId != "") {
		if (document.getElementById(dealId).type != "hidden") {
			document.getElementById(dealId).focus();
		}
	}
	if (dealId == "" && dealName != "") {
		if (dealName != "") {
			document.getElementsByName(dealName)[0].focus();
		}
	}
}

function validator(frm) {
	var formElements = frm.elements;
	var fv = new FormValid(frm);
	FormValid.allName = new Array();
	for (var i = 0; i < formElements.length; i++) {
		if (formElements[i].disabled == true)
			continue;
		var msgs = fvCheck(formElements[i], fv, formElements);
		if (msgs.length > 0) {
			for (n in msgs) {
				fv.addErrorMsg(formElements[i].name, msgs[n]);
			}
		}
	}
	return fv.passed();
}

function fvCheck(e, fv, formElements) {
	var validType = e.getAttribute('valid');
	var errorMsg = e.getAttribute('errmsg');
	if (!errorMsg) {
		errorMsg = '';
	}
	if (validType == null)
		return [];
	fv.addAllName(e.name);
	var vts = validType.split('|');
	var ems = errorMsg.split('|');
	var r = [];
	for (var j = 0; j < vts.length; j++) {
		var curValidType = vts[j];
		var curErrorMsg = ems[j];
		var validResult;
		switch (curValidType) {
		case 'isAreaCode': // 验证区号
		case 'isPositive': // 验证是否是正数
		case 'isPosInt': // 验证是否是正整数
		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 'isDateOnlyYandM':
		case 'isTime':
		case 'isTwoPointInt':
		case 'isPostcode':
		case 'isNotNegativeFloat':
		case 'isNotNegativeInt':
			validResult = fv.checkReg(e, RegExps[curValidType], curErrorMsg);
			break;
		case 'regexp':
			validResult = fv.checkReg(e, new RegExp(e.getAttribute('regexp'),
					"g"), curErrorMsg);
			break;
		case 'custom':
			validResult = eval(e.getAttribute('custom') + '(e,formElements)');
			break;
		default:
			validResult = eval('fv.' + curValidType + '(e,formElements)');
			break;
		}
		if (!validResult)
			r.push(curErrorMsg);
	}
	return r;
}
String.prototype.trim = function() {
	return this.replace(/^\s*|\s*$/g, "");
};
var RegExps = function() {
};
RegExps.isAreaCode = /0\d{2,3}/;
RegExps.isNumber = /^[-\+]?\d+(\.\d+)?$/;
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})?$/;
RegExps.isPhone = /^(\d{4}[-]?)?\d{8}$/;
RegExps.isMobile = /^1[0-9][0-9]\d{8}$/;
RegExps.isIdCard = /(^\d{15}$)|(^\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[s]?:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/;
RegExps.isDate = /^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29))$/;
RegExps.isTime = /^\d{4}-\d{1,2}-\d{1,2}\s\d{1,2}:\d{1,2}:\d{1,2}$/;
RegExps.isDateOnlyYandM = /(^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29))$)|(^([0-9]{4}(\-){1}(([0]?[1-9]{1})|([1-9]{1})|([1]{1}[0-2]{1})))$)/;
RegExps.isTwoPointInt = /^\d+(\.\d{1,2})?$/;
RegExps.isPositive = /^(0|([1-9]\d*))(\.\d+)?$/;
RegExps.isPosInt = /^[0-9]*[1-9][0-9]*$/;
RegExps.isPostcode = /^[1-9][0-9]{5}$/;
RegExps.isNotNegativeFloat = /^\d+(\.\d+)?$/; //匹配非负浮点数（正浮点数 + 0）
RegExps.isNotNegativeInt = /^\d+$/; //匹配非负整数（正整数 + 0）
function isEmail(s) {
	if (s.length > 100)
		return false;
	var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[_.0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|NET|com|COM|gov|GOV|mil|MIL|org|ORG|edu|EDU|int|INT)$";
	var re = new RegExp(regu);
	if (s.search(re) != -1)
		return true;
	else
		return false;
}

// 验证只能输入数字
function KeyPress(objTR) {
	var key = event.keyCode;

	if ((key < 48 || key > 57)) {
		event.keyCode = 0;
	}
}

// 限制只能输入数字和"-","."
function numKeyPress(objTR) {
	var key = event.keyCode;
	if (!(((key >= 48) && (key <= 57)) || (key == 13) || (key == 46) || (key == 45))) {
		event.keyCode = 0;
	}
}

// 限制只能输入数字和一个"."
function onlyNumAndDot(obj) {
	var textval = obj.value;
	var key = event.keyCode;
	if (!(((key >= 48) && (key <= 57)) || (key == 46))) {
		event.keyCode = 0;
	} else {
		if (!((key >= 48) && (key <= 57)) && textval.indexOf(".") > -1) {
			event.keyCode = 0;
		}
	}
}

function doKeypress(obj) {
	maxLength = obj.maxlength;
	if (!isNaN(maxLength)) {
		maxLength = parseInt(maxLength);
		var oTR = obj.document.selection.createRange();
		if (oTR.text.length >= 1)
			event.returnValue = true;
		else if (obj.value.length > maxLength - 1)
			event.returnValue = false;
	}
}

function doKeydown(obj) {
	maxLength = obj.maxlength;
	setTimeout(
			function() {
				maxLength = parseInt(maxLength);
				if (!isNaN(maxLength)) {
					if (obj.value.length > maxLength - 1) {
						var oTR = window.document.selection.createRange();
						oTR.moveStart("character", -1
								* (obj.value.length - maxLength));
						oTR.text = "";
					}
				}
			}, 1);
}

function doBeforePaste(obj) {
	maxLength = obj.maxlength;
	if (!isNaN(maxLength))
		event.returnValue = false;
}

function doPaste(obj) {
	maxLength = obj.maxlength;
	if (!isNaN(maxLength)) {
		event.returnValue = false;
		maxLength = parseInt(maxLength);
		var oTR = obj.document.selection.createRange();
		var iInsertLength = maxLength - obj.value.length + oTR.text.length;
		var sData = window.clipboardData.getData("Text").substr(0,
				iInsertLength);
		oTR.text = sData;
	}
}

function checkESC(va) {
	var variable = va;
	var str = variable;
	if (variable.indexOf("<") > 0) {
		str = variable.replace(/\</g, "&lt;");
	}
	if (variable.indexOf(">") > 0) {
		str = variable.replace(/\>/g, "&gt;");
	}
	if (variable.indexOf("&") > 0) {
		str = variable.replace(/\&/g, "&amp;");
	}
	if (variable.indexOf("\"") > 0) {
		str = variable.replace(/\"/g, "&quot;");
	}
	if (variable.indexOf("\'") > 0) {
		str = variable.replace(/\'/g, "&acute;");
	}
	return str;
}

/**
 * 检查message的长度是否超过total，若超过，则截取并返回message的0~total的字串
 * 
 * @param message
 * @param total
 */
function countTextAreaLength(message, total) {
	var max;
	max = total;
	if (message.value.length > max) {
		message.value = message.value.substring(0, max);
	}
}