/*-------------------------------------------------------------------------------------

Date: 17/08/2006

Author: ThangVQ

File: checkImage.js

Purpose: check all text field in the form

Change: first create

-------------------------------------------------------------------------------------*/



function checklength(value, maxlength)

{

	//alert(value.length + " " + maxlength);

 if (value.length > maxlength)

 {

  return false;

 }

 else

 {

  return true;

 }

}

function checkvalue(value, maxvalue)

{

 if (value > maxvalue)

 {

  return false;

 }

 else

 {

  return true;

 }

}

function isNull(value)

{

 if (value == "")

 {

  return true;

 }

 else

 {

  return false;

 }

}

function checkchar(value)

{

 var illegalChars = /[\(\)\<\>\,\!\#\$\%\^|&\*\;\:\ \\\"\'\?\`\~\[\]\]]/;



 if (value.match(illegalChars))

 {

	

  return false;

 }

 else

 {

  return true;

 }

}

function isEmail(value, maxlength)

{

 if (isNull(value))

 {

  return "null";

 }

 else if (!checkchar(

               value) || value.indexOf(

                             '@') < 1 || value.indexOf(

                                             '.') < 1 || value.lastIndexOf(

                                                             '@') > value.lastIndexOf(

                                                                        '.') || value.indexOf('.') == value.length - 1)

 {

  return false;

 }

 else if (!checklength(value, maxlength))

 {

  return "long";

 }

 else

 {

  return true;

 }

}

function isText(value, maxlength)

{

 var illegalChars = /[\(\)\<\>\#\$\%\^\&\*\;\:\\\`\~\[\]\]]/;



 if (isNull(value))

 {

  return "null";

 }

 else if (!checklength(value, maxlength))

 {

  return "long";

 }

 else if (value.match(illegalChars))

 {

  return false;

 }

 else

 {

  return true;

 }

}

function isPhone(value, maxlength)

{

 var stripped = value.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters



 if (isNull(value))

 {

  return "null";

 }

 else if (isNaN(stripped))

 {

  return false;

 }

 else if (!checklength(value, maxlength))

 {

  return "long";

 }

 else

 {

  return true;

 }

}

function isNumber(value, maxvalue)

{

 if (isNull(value))

 {

  return "null";

 }

 else if (isNaN(value) || !checkvalue(value, maxvalue))

 {

  return false;

 }

 else

 {

  return true;

 }

}

function isDate(value)

{

 var cur_date = new Date();

 var current = cur_date.getYear() * 10000 + (cur_date.getMonth() + 1) * 100 + cur_date.getDate();



 var year = value.substr(0, 4);

 var month = value.substr(5, 2);

 var day = value.substr(8, 2);

 var date = new Date(year, month, day);

 var date_num = date.getYear() * 10000 + (date.getMonth()) * 100 + date.getDate();



 if (isNull(value))

 {

  return "null";

 }

 else if (value.length != 10 || isNaN(date_num))

 {

  return false;

 }

 else if (date_num > current)

 {

  return "bigger";

 }

 else if (date_num == current)

 {

  return "equal";

 }

 else

 {

  return "smaller";

 }

}

function isFile(value)

{

 if (isNull(value))

 {

  return "null";

 }

 else if (value.substring(value.length - 4, value.length).toLowerCase() != ".jpg" && value.substring(value.length - 4, value.length).toLowerCase() != ".gif")

 {

  return "notimg";

 }

 else

 {

  return true;

 }

}

/*--------------------------------------------------------------------------------------------

Date: 17/08/2066

Author: ThangVQ

Function: checkText()

Input: three array: arr_field contains text_field_name in the form

                    field_type contains text_field_type. They're: text, phone, email, number

                    field_attr contains text_field_attribute. They're: maxlength or maxvalue (for

                    number field).

Output: one array: arr_result contains boolean values or a String value "null" if this field is null.

"long" if too long.

Purpose: check all text fields in the form.

---------------------------------------------------------------------------------------------*/

function checkText(arr_field, field_type, field_attr)

{

 var i = 0;

 var arr_result = new Array();



 for (i = 0; i < arr_field.length; i++)

 {

	 

  switch (field_type[i])

  {

   case "text":

    arr_result[i] = isText(arr_field[i].value, field_attr[i]);



    break;



   case "phone":

    arr_result[i] = isPhone(arr_field[i].value, field_attr[i]);



    break;



   case "email":

    arr_result[i] = isEmail(arr_field[i].value, field_attr[i]);



    break;

	

	case "number":

    arr_result[i] = isNumber(arr_field[i].value, field_attr[i]);



    break;



   case "date":

    arr_result[i] = isDate(arr_field[i].value);



    break;



   case "file":

    arr_result[i] = isFile(arr_field[i].value);



    break;

	//truong hop kiem tra la website

   case "website":

    arr_result[i] = isUrl(arr_field[i].value, field_attr[i]);



    break;	 



   default:

    arr_result[i] = true;

  }

 }



 return arr_result;

}

//phuong thuc check website



function isUrl(value,maxlength) {

	//alert(value);

	if(value>maxlength)

		return 'long';

	if(value=='')

		return 'null';		

	var regexp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/

	return regexp.test(value);

}