/*

**  Common javascript validations

**

**  How to include this file:

**

**  </head>

**  <script src="include/validations.js">

**  </script>

**

*/



var _console = null;

var _gDisplayAlert = true;

var _gAlertCounter = 0;



function debug(msg)

{

	if (_console == null || _console.closed)

	{

		_console = window.open("","console","width=600,height=300,scrollbars,resizable");

		_console.document.open("text/plain");

	}



	_console.focus();

	_console.document.writeln(msg);

}



/*

**  This function checks for an integer value made

**  up of only digits 0-9.

*/

function isInt (textObj)

{

   var newValue = textObj.value;

   var len = newValue.length;

   var c = "0";



   for (var i = 0; i < len; i++)

   {

     c = newValue.charAt(i);

     if (c < "0" || c > "9")

     {

	if (_gDisplayAlert)

		alert("This Field Contains Invalid Characters.\nOnly digits 0 through 9 are valid."); 

        return false;

     }	

   }

   

   return true;

}



/*

**  Check for a valid email format

**  Parameter: email is a string object

*/



function isValidEmail (email) 

{ 

   var emailStr = email.value;

   var checkTLD=0; 

   var knownDomsPat=/ ^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|us)$/; 

   var emailPat=/^(.+)@(.+)$/; 

   var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]"; 

   var validChars="\[^\\s" + specialChars + "\]"; 

   var quotedUser="(\"[^\"]*\")"; 

   var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/; 

   var atom=validChars + '+'; 

   var word="(" + atom + "|" + quotedUser + ")"; 

   var userPat=new RegExp("^" + word + "(\\." + word + ")*$"); 

   var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$"); 

   var matchArray=emailStr.match(emailPat); 



   if (matchArray==null) 

   { 

      alert("The Email Address Is Invalid"); 

      return false; 

   } 



   var user=matchArray[1]; 

   var domain=matchArray[2]; 



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

   { 

      if (user.charCodeAt(i)>127) 

      { 

         alert("The Username Contains Invalid Characters."); 

         return false; 

      } 

   } 



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

   { 

      if (domain.charCodeAt(i)>127) 

      { 

         alert("The Domain Name Contains Invalid Characters."); 

         return false; 

      } 

   } 



   if (user.match(userPat) == null) 

   { 

      alert("The Username Is Invalid."); 

      return false; 

   } 



   var IPArray=domain.match(ipDomainPat); 



   if (IPArray != null) 

   { 

      for (var i=1; i <= 4; i++) 

      { 

         if (IPArray > 255) 

	 { 

            alert("The Destination IP Address Is Invalid."); 

            return false; 

         } 

      } 



      return true; 

   } 



   var atomPat=new RegExp("^" + atom + "$"); 

   var domArr=domain.split("."); 

   var len=domArr.length; 



   for (i=0; i < len; i++) 

   { 

      if (domArr[i].search(atomPat)==-1) 

      { 

         alert("The Domain Name Is Invalid."); 

         return false; 

      } 

   } 



   if (checkTLD && domArr[domArr.length-1].length != 2 && 

       domArr[domArr.length-1].search(knownDomsPat) == -1) 

      { 

          alert("The Domain Name Extension Is Invalid"); 

          return false; 

      } 



   if (len < 2) 

   { 

      alert("The Address Is Missing A Hostname."); 

      return false; 

   }



   return true;

} 



function isMoney(node)

{

	var str = node.value;

	var numPattern = /^\s*\d+(\.\d{2})?\s*$/;

	var moneyPattern = /^\s*\d{1,3}(,\d{3})*(\.\d{2})?\s*$/;



	if (node == null)

		return false;



	if (node.type != 'text')

		return false;



	if (str.length == 0)

		return true;



	if (str.match(numPattern) != null)

		return true;



	if (str.match(moneyPattern) != null)

	{

		str.replace(/,/g,"");

		node.value = str;

		return true;

	}



	if (_gDisplayAlert)

	{

		// if (_gAlertCounter == 0)

			alert("The number is not valid.");

		_gAlertCounter++;

	}

	node.focus();

	node.value = "";

	return false;

}



function isPercent(node)

{

	var str = node.value;

	var numPattern = /^\s*\d{1,3}(\.\d{0,3})?\s*$/;



	if (node == null)

		return false;



	if (node.type != 'text')

		return false;



	if (str.length == 0)

		return true;



	if (str.match(numPattern) != null)

		return true;



	if (_gDisplayAlert)

	{

		// if (_gAlertCounter == 0)

			alert("The number is not valid.");

		_gAlertCounter++;

	}

	node.focus();

	node.value = "";

	return false;

}



function isNumber(node)

{

	var str = node.value;

	var numPattern = /^\s*\d*(\.\d*)?\s*$/;



	if (node == null)

		return false;



	if (node.type != 'text')

		return false;



	if (str.length == 0)

		return true;



	if (str.match(numPattern) != null)

		return true;



	if (_gDisplayAlert)

	{

		alert("The number is not valid.");

	}

	node.focus();

	node.value = "";

	return false;

}



function verifyCancel()

{

	var msg = "Warning: This will cancel your session and return to the home page.\n";

	msg += "Do you want to continue?";



	return confirm(msg);

}



function verifyCheckbox(nodeList)

{

	for (var i=0; i < nodeList.length; i++)

	{

		if (nodeList[i].checked)

			return true;

	}

	return false;

}



function verifyPage(fields)

{

	var	spacePattern = /^\s*$/;

	_gDisplayAlert = false;



	// Verify that we have some fields to check

	if (!fields)

	{

		_gDisplayAlert = true;

		_gAlertCounter = 0;

		return true;

	}



	var elementArray = fields.split(',');



	if (elementArray.length == 0)

	{

		_gDisplayAlert = true;

		_gAlertCounter = 0;

		return true;

	}



	// For each named item, check that it has a value entered.

	for (var i=0; i < elementArray.length; i++)

	{

		var nodeName = elementArray[i];

		var nodeValue = "";

		var nodeList = document.getElementsByName(nodeName);

		if (nodeList.length > 0)

		{

			// Checkbox type is actually an array of checkboxes which may be checked/not checked

			if (nodeList[0].type == 'checkbox')

			{

				if (!verifyCheckbox(nodeList))

				{

					alert('You must check at least one (1) box');

					_gDisplayAlert = true;

					_gAlertCounter = 0;

					return false;

				}

				continue;

			}

			else if (nodeList[0].type == 'text' && nodeList[0].onblur != null)

			{

				if (!nodeList[0].onblur())

				{

					_gDisplayAlert = true;

					_gAlertCounter = 0;

					return false;

				}

			}



			nodeValue = nodeList[0].value;

		}

		if (nodeValue.length == 0 || nodeValue.match(spacePattern))

		{

			nodeList[0].focus();

			alert('This field is required');

			_gDisplayAlert = true;

			_gAlertCounter = 0;

			return false;

		}

	}



	_gAlertCounter = 0;

	_gDisplayAlert = true;

	return true;

}