/*************************************************************************************
程式功能		:	表單驗證工具
建置日期		:	2012-03-36
版本			:	1.0
版權所有		:	尚峪資訊科技有限公司 http://www.shang-yu.com.tw
--------------------------------------------------------------------------------------
fromsAuth
表單元件驗證參數(fun)

函式
checkNull(jquery obj)						:	驗證空白
checkNum(jquery obj)						:	驗證數字
checkNumNull(jquery obj)					:	驗證數字必填
checkEnNum(jquery obj)						:	驗證英文數字
checkEnNumNull(jquery obj)					:	驗證英文數字必填
checkPersonID(jquery obj)					:	驗證身份證字號
checkPersonIDNull(jquery obj)				:	驗證身份證字號必填
checkEmail(jquery obj)						:	驗證電子信箱
checkEmailNull(jquery obj)					:	驗證電子信箱必填
checkItems(jquery obj, jquery formObj)		:	驗證核選方塊及選項方塊
checkSame(jquery obj, jquery formObj)		:	驗證和checkSame欄位的值是否相同
checkSameNull(jquery obj, jquery formObj)	:	驗證和checkSame欄位的值是否相同必填

返回值
PASS	:	為驗證成功
ERROR	:	為格式錯誤
NULL	:	欄位空值
*************************************************************************************/
var check_tools = {
	_PASS:	"PASS",
	_ERROR:	"ERROR",
	_NULL:	"NULL",
	checkNull: function($this){	//驗證空值
		if($this.val() == ''){
			return this._NULL;
		};
		return this._PASS;
	},
	checkNum: function($this){	//驗證數字
		var number = "0123456789.";
		var string;	
		for(var i = 0;i <= $this.val().length - 1;i++) {
			string = $this.val().substring(i,i + 1);
			if(number.indexOf(string) == -1) {
				return this._ERROR;
			};
		};
		return this._PASS;
	},
	checkNumNull: function($this){	//驗證數字必填
		//驗證空白
		var ret = check_tools.checkNull($this);
		if(ret != this._PASS)return ret;
		
		var number = "0123456789.";
		var string;	
		for(var i = 0;i <= $this.val().length - 1;i++) {
			string = $this.val().substring(i,i + 1);
			if(number.indexOf(string) == -1) {
				return this._ERROR;
			};
		};
		return this._PASS;
	},
	checkEnNum: function($this){	//驗證英文數字
		var number = "00123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-+";
		var string;	
		for(var i = 0;i <= $this.val().length - 1;i++) {
			string = $this.val().substring(i,i + 1);
			if(number.indexOf(string) == -1) {
				return this._ERROR;
			};
		};
		return this._PASS;
	}, 
	checkEnNumNull	:	function($this){	//驗證英文數字必填	
		//驗證空白
		var ret = check_tools.checkNull($this);
		if(ret != this._PASS)return ret;
		
		var number = "00123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-+";
		var string;	
		for(var i = 0;i <= $this.val().length - 1;i++) {
			string = $this.val().substring(i,i + 1);
			if(number.indexOf(string) == -1) {
				return this._ERROR;
			};
		};
		return this._PASS;
	},
	checkPersonID: function($this){	//驗證身份證字號
		if($this.val()){
			var c, n, i;
			var t = "ABCDEFGHJKLMNPQRSTUVXYWZIO";
			c = $this.val().substring(0,1);
			c = t.indexOf(c.toUpperCase());
			if (($this.val().length != 10) || (c < 0)) {
				return this._ERROR;
			};
			n = parseInt(c/10) + c%10*9 + 1;
			for (i = 1; i<9; i++) n = n + parseInt($this.val().substring(i, i+1)) * (9-i);
			n = (10 - (n % 10)) % 10;
			if (n != parseInt($this.val().substring(9, 10))) {
				return this._ERROR;
			};
		};
		return this._PASS;
	},
	checkPersonIDNull: function($this){	//驗證身份證字號必填	
		//驗證空白
		var ret = check_tools.checkNull($this);
		if(ret != this._PASS)return ret;
		
		var c, n, i;
		var t = "ABCDEFGHJKLMNPQRSTUVXYWZIO";
		c = $this.val().substring(0,1);
		c = t.indexOf(c.toUpperCase());
		if (($this.val().length != 10) || (c < 0)) {
			return this._ERROR;
		};
		n = parseInt(c/10) + c%10*9 + 1;
		for (i = 1; i<9; i++) n = n + parseInt($this.val().substring(i, i+1)) * (9-i);
		n = (10 - (n % 10)) % 10;
		if (n != parseInt($this.val().substring(9, 10))) {
			return this._ERROR;
		};
		return this._PASS;
	},
	checkEmail: function($this){	//驗證電子信箱
		var str_pos  = $this.val().indexOf("@");
		var str_pos1 = $this.val().indexOf(".");
		var str_len  = $this.val().length;
		if(str_len <= 0) {
			return this._PASS;
		};
		var chk_str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_";
		if(str_pos != -1 && str_pos1 != -1) {
			for(var i= 0;i <= str_pos - 1;i++) {
				if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
					return this._ERROR;
				};
			};
			for(var i= str_pos + 1;i <= $this.val().length - 1;i++) {
				if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
					return this._ERROR;
				};
			};
			return this._PASS;
		};
		return this._ERROR;
	},
	checkEmailNull: function($this){	//驗證電子信箱必填
		//驗證空白
		var ret = check_tools.checkNull($this);
		if(ret != this._PASS)return ret;
		
		var str_pos  = $this.val().indexOf("@");
		var str_pos1 = $this.val().indexOf(".");
		var str_len  = $this.val().length;
		if(str_len <= 0) {
			return this._PASS;
		};
		var chk_str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_";
		if(str_pos != -1 && str_pos1 != -1) {
			for(var i= 0;i <= str_pos - 1;i++) {
				if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
					return this._ERROR;
				};
			};
			for(var i= str_pos + 1;i <= $this.val().length - 1;i++) {
				if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
					return this._ERROR;
				};
			};
			return this._PASS;
		};
		return this._ERROR;
	},
	checkItems:	function($this, $form){	//驗證核選方塊及選項方塊
		if($form.find("[name=" + $this.attr('name') + "]:checked").size() == 0){
			return this._NULL;	
		}
		return this._PASS;
	},
	checkSame: function($this, $form){	//驗證值是否相同
		var ret = "";
		$form.find("[checkSame = 'true']").each(function(){
			if($this.val() != $(this).val()){
				ret = check_tools._ERROR;		
			};
		});
		if(ret == this._ERROR)
			return ret;
		else
			return this._PASS;
	},
	checkSameNull: function($this, $form){	//驗證值是否相同並必填
		//驗證空白
		var ret = check_tools.checkNull($this);
		if(ret != this._PASS)return ret;
		
		var ret = "";
		$form.find("[checkSame = 'true']").each(function(){
			if($this.val() != $(this).val()){
				ret = check_tools._ERROR;		
			};
		});
		if(ret == this._ERROR)
			return ret;
		else
			return this._PASS;
	}
};