关于form验证代码分享

	// 错误提示类型，1为alert，2为weebox提示，3为display一个div
	var warning_type = 3;
	var warning_msg = "";
	var warningImagePath = '/Public/Images/';

	var error_tag_id = 'show_error_span';

	function show_error(msg){
		switch(warning_type){
			case 1: alert(msg); break;
			case 2: $.weeboxs.open(msg, {type:'error'}); break;
			case 3: 
				$("#" + error_tag_id).html(msg);
				$("#" + error_tag_id).show();
				break;
		}
	}
	
	function check_submit(form_obj){
	    for (var i = 0; i < form_obj.elements.length; i++) {
	    	var field_obj = form_obj.elements[i];
	    	if(field_obj.getAttribute("restrict") != null){
	    		if(!check_required(field_obj, false))
	    			return false;
	    	}
	    }
	    return true;
	};
	
	function check_query_submit(form_obj){
		check_submit(form_obj);
	};
	
	function check_required(field_obj, blank_accept){
		var value = field_obj.value;
		if(blank_accept && value=='')
			return true;
			
		var restrict_list = field_obj.getAttribute("restrict");
		var obj_name = field_obj.getAttribute("des");
		if(obj_name == null){
			obj_name = "";
		}else{
			obj_name += '-';
		}

		if(restrict_list != null){
			var r_arr = restrict_list.split(" ");
			for(var i = 0; i < r_arr.length; i++){
				var limit_str = r_arr[i];
//				alert(limit_str);
//				return false;
				switch(limit_str){
					case('none'):
						return true;
					case('required'):
						if(!check_blank(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('int'):
						if(!check_number(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('double'):
						if(!check_double(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('decimal'):
						if(!check_double(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('email'):
						if(!check_email(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('date'):
						if(!check_date(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('time'):
						if(!check_time(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('url'):
						if(!check_url(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					case('ip'):
						if(!check_ip(value, obj_name)){
							field_obj.focus();
							return false;
						}
						break;
					default:
						return true;
				}
			}
			return true;
		}
		
	};
	
	function check_blank(value, obj_name){
		if(value != ''){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填不能为空！");
	   		return false;
	 	}
	};

	function check_number(value, obj_name){
		var reg = "^[0-9]*$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的数字！");
	   		return false;
	 	}
	};
	
	function check_double(value, obj_name){
		var reg = "^[0-9]+(\.[0-9]+)?$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的双精度数字！");
	   		return false;
	 	}
	};
	
	function check_ip(value, obj_name){
		var reg = "^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的IP地址！");
	   		return false;
	 	}
	};
	
	function check_url(value, obj_name){
		var reg = "^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的URL地址！");
	   		return false;
	 	}
	};
	
	
	function check_email(value, obj_name){
		var reg = "^[a-zA-Z0-9_-]+(\.([a-zA-Z0-9_-])+)*@[a-zA-Z0-9_-]+[.][a-zA-Z0-9_-]+([.][a-zA-Z0-9_-]+)*$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的email地址！");
	   		return false;
	 	}
	};
	
	function check_date(value, obj_name){
		var reg = "^((\\d{4})|(\\d{2}))([-./])(\\d{1,2})\\4(\\d{1,2})$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的日期格式！");
	   		return false;
	 	}
	};
	
	function check_time(field_obj, obj_name){
		var reg = "^[a-zA-Z0-9_-]+(\.([a-zA-Z0-9_-])+)*@[a-zA-Z0-9_-]+[.][a-zA-Z0-9_-]+([.][a-zA-Z0-9_-]+)*$";
		var reg_obj = new RegExp(reg);
		if(value.match(reg_obj)){
	   		return true;
	  	}else{
	  		show_error(obj_name + "所填必须为有效的时间格式！");
	   		return false;
	 	}
	};
	
	function check_str_len(field_obj, len){
		var value = field_obj.value;
		if(value.length < len){
			show_error(obj_name + "最少长度必须为"+len+"！");
	   		return false;
		}else{
			return true;
		}
	};