// Madgex Limited
// Copyright (c) 2004 Madgex Limited. All Rights Reserved.
// Validation - Core Components Project
// 12 August 2004
// Version 1.0.0

function CheckDateFormat( sFieldName )
{
	//alert ( sFieldName );
	eval( 'var elt = document.forms[0].' + sFieldName )
	CheckDateFormatElt( elt )
}

function CheckDateFormatElt( elt )
{
	var sText = elt.value;
	var sMsg = ''
	var sRes = ''
	var bShowMessage = true;
	
	if ( arguments.length > 1 )
	{
		bShowMessage = arguments[1];
	}
	
	if ( sText != '' )
	{
		var d = sText.split('/')

		if ( d.length == 2 )
		{
			var dt = new Date()
			d[2] = dt.getFullYear()
		}
		
		if ( d.length != 3 )
		{
			sMsg = 'Invalid date format - ' + sText
		}
		else
		{
			if ( isNaN(parseInt(d[0],10)) || d[0] > 31 || d[0] < 1 )
			{
				sMsg = 'Invalid day of month - ' + d[0]
			}
			else if ( isNaN(parseInt(d[1],10)) || d[1] > 12 || d[1] < 1 )
			{
				sMsg = 'Invalid month - ' + d[1]			
			}
			else if ( isNaN(parseInt(d[2],10)) )
			{
				sMsg = 'Invalid day of year - ' + d[2]			
			}
			else if ( d[2] > -1 && d[2] < 100 )
			{
				d[2] = parseInt(d[2],10) + 2000
			}
			
			if ( d[2] < 1900 || d[2] > 3000 )
			{
				sMsg = 'Invalid year - ' + d[2]
			}
			
			var day, month
			
			day = parseInt(d[0],10)
			if (day<10)
				day = '0' + day
			
			month = parseInt(d[1],10)
			if ( month<10 )
				month = '0' + month
			
			sRes = day + '/' + month  + '/' + parseInt(d[2],10) 
		}
	}
	// suppress alerts - used by other functions
	if ( bShowMessage == false )
	{
		if ( sMsg != '')
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	
	if ( sMsg != '' )
	{
		alert( sMsg )
		elt.focus()
		elt.select()
	}
	else
	{
		elt.value = sRes
	}
}

function CheckInteger( sFieldName )
{
	eval( 'var elt = document.forms[0].' + sFieldName )
	var sText = elt.value;

	var sMsg = ''
	var sRes = ''
	
	if ( sText != '' )
	{	sRes = parseInt( sText,10);
	
		if ( isNaN(sRes) )
			sMsg = 'Invalid number'
	}
	
	if ( sMsg != '' )
	{
		alert( sMsg )
		elt.focus()
		elt.select()
	}
	else
	{
		elt.value = sRes
	}
}

function CheckMoney( sFieldName )
{
	var sText = elt.value
	var sMsg = ''
	var sRes = sText
	
	if ( sText != '' )
	{
		if (sText.substr(0,1) == '.')
			sText = '0' + sText
	
		var d = sText.split('.')

		if ( d.length == 1 )
		{
			d[1] = '00'
		}
	
		if (d.length != 2)
		{
			sMsg = 'Invalid amount'
		}
		else
		{
			if ( isNaN(parseInt(d[0],10)) )
			{
				sMsg = 'Invalid amount'
			}
			else if ( isNaN(parseInt(d[1],10)) || d[1]<0)
			{
				sMsg = 'Invalid fractional amount'
			}
			else
			{
				sRes = d[0] + '.' + d[1]
			}

		}
	}
		
	if ( sMsg != '' )
	{
		alert( sMsg )
		elt.focus()
		elt.select()
	}
	else
	{
		elt.value = sRes
	}
}

function CheckEmailFormat( sFieldName )
{
	eval( 'var elt = document.forms[0].' + sFieldName )
	var sText = elt.value;

	var sMsg = ''
	var sRes = ''
	
	if ( sText != '' )
	{	
		sRes = sText;

		var d = sText.split('@')

		if ( d.length != 2 )
		{
			sMsg = 'Invalid E-mail Address'

		}
		else
		{
			var dom = d[1].split('.') ;
			
			if ( dom.length < 2 )
			{
				sMsg = 'Invalid E-mail Address'

			}
		}
	}
	
	if ( sMsg != '' )
	{
		alert( sMsg )
		elt.focus()
		elt.select()
	}
	else
	{
		elt.value = sRes
	}
}

function CheckURLFormat( sFieldName ) {
	var regEx = /^(file|http|https):\/\/\S+\.\S+$/i
	
	eval( 'var elt = document.forms[0].' + sFieldName )
	var sText = elt.value;
	
	if ( sText != '' && !regEx.test( sText ) )
	{	
		alert( 'Invalid URL' )
		elt.focus()
		elt.select()
	}
 }

function CheckTimeFormat( sFieldName )
{
	eval( 'var elt = document.forms[0].' + sFieldName )
	var sText = elt.value;

	var sMsg = ''
	var sRes = ''
	
	if ( sText != '' )
	{
		var d = sText.split(':')
		
		if ( d.length != 2 )
		{
			sMsg = 'Invalid time format, colon needed - ' + sText
		}
		else
		{
			if ( isNaN(parseInt(d[0],10)) || d[0] > 24 || d[0] < 0 )
			{
				sMsg = 'Invalid hour - ' + d[0]
			}
			else if ( isNaN(parseInt(d[1],10)) || d[1] > 59 || d[1] < 0 )
			{
				sMsg = 'Invalid minute - ' + d[1]			
			}
			
			var mn, hr
			
			mn = parseInt(d[0],10)
			if (mn<10)
				mn = '0' + mn
			
			hr = parseInt(d[1],10)
			if ( hr<10 )
				hr = '0' + hr
			
			sRes = mn + ':' + hr
		}
	}
	
	if ( sMsg != '' )
	{
		alert( sMsg )
		elt.focus()
		elt.select()
	}
	else
	{
		elt.value = sRes
	}
}

String.prototype.IsWhiteSpace = function()
{
	return this == ' ' || this == '\t';
}

String.prototype.TrimLeft = function()
{
	var i=0;
	
	while (this.charAt(i).IsWhiteSpace())
		i++;
		
	return this.substr(i)
}

String.prototype.TrimRight = function()
{
	var i=this.length;
	
	while (this.charAt(i).IsWhiteSpace())
		i--;
		
	return this.substr(0,i+1)
}

String.prototype.Trim = function()
{
	return this.TrimLeft().TrimRight();
}

function CheckValidEmail( sText )
{
		
	// Assumes sText is not empty
	var d = sText.split('@')

	if ( d.length != 2 )
	{
		return false;
	}
	else
	{
		var dom = d[1].split('.') ;
		
		if ( dom.length < 2 )
			return false;
	}
	
	return true;
}

function validEmail(item)
{
	if(item.indexOf('@') > 0)
	{
		return true;
	}
	else
	{
		return false;
	}
}
String.prototype.GetDate = function()
	{
		var sText = this;
		var sMsg = ''
		var sRes = ''
		
		if ( sText != '' )
		{
			var d = sText.split('/')

			if ( d.length == 2 )
			{
				var d = new Date()
				d[2] = d.getFullYear()
			}
			
			if ( d.length != 3 )
			{
				sMsg = 'Invalid date format - ' + sText
			}
			else
			{
				if ( isNaN(parseInt(d[0],10)) || d[0] > 31 || d[0] < 1 )
				{
					sMsg = 'Invalid day of month - ' + d[0]
				}
				else if ( isNaN(parseInt(d[1],10)) || d[1] > 12 || d[1] < 1 )
				{
					sMsg = 'Invalid month - ' + d[1]			
				}
				else if ( isNaN(parseInt(d[2],10)) )
				{
					sMsg = 'Invalid day of year - ' + d[2]			
				}
				else if ( d[2] > -1 && d[2] < 100 )
				{
					d[2] = parseInt(d[2],10) + 2000
				}
				
				if ( d[2] < 1900 || d[2] > 3000 )
				{
					sMsg = 'Invalid year - ' + d[2]
				}
				
				var day, month
				
				day = parseInt(d[0],10)
				if (day<10)
					day = '0' + day
				
				month = parseInt(d[1],10)
				if ( month<10 )
					month = '0' + month
				
				//sRes = day + '/' + month  + '/' + parseInt(d[2],10)
				sRes =  month + '/' +  day + '/' + parseInt(d[2],10)  
			}
		}
		
		if ( sMsg != '' )
		{
			return null;
		}
		else
		{
			var dRes = new Date( Date.parse( sRes ) );
			return dRes;
		}
	}
	
function ValidateFeedback( aForm )
{	
	var sMsg='';
	var highLightRequired = false;
	var bgColor = 'red';
	var elt = aForm.req_sEmailAddress.value;
			
	if( arguments.length > 1)
	{
		highLightRequired = arguments[1] ;
	}
			
	if( IsBlank(elt) || !( CheckValidEmail(elt))  )
	{
		sMsg = sMsg + 'You must supply a valid email address.\n';
		
		if ( highLightRequired )
		{
			elt.style.backgroundColor = bgColor
		}
	}
	
	elt = aForm.req_strComments.value;
	
	if ( IsBlank(elt) )
	{
		sMsg = sMsg + 'You must supply a comment.';
		
		if ( highLightRequired )
		{
			elt.style.backgroundColor = bgColor
		}
	}
	
	if ( sMsg != '')
	{
		alert(sMsg);
		return false;
	}
	else
	{
		return true;
	}
	
}
	
function ValidateAccountForm( aForm )
{
	var bHighLightElement = false;
	var bRegistrationForm = false; // we can handle validation for the registration form here as well...
	var sMsg = '';
	var iSelected = 0;
	var bgColor = 'red';
	var validates = true ;
	
	if( arguments.length == 2 )
	{
		bHighLightElement = arguments[1] ;
	}
	if( arguments.length == 3 )
	{
		bRegistrationForm = arguments[2] ;
	}
	
	if ( IsBlank( aForm.JobTitle.value ) ) 
	{
		sMsg += '\nYou must supply your job function.';
		validates = false;
		
		if ( bHighLightElement )
		{
			aForm.JobTitle.style.backgroundColor = bgColor
		}
	}
	
	if ( bRegistrationForm == true )
	{
		if( IsBlank( aForm.Username.value ) )
		{
			sMsg += '\nYou must supply an email address.';
			if ( bHighLightElement )
			{
				aForm.Username.style.backgroundColor = bgColor	
			}
		}
		var msg = ValidatePassword( aForm , bHighLightElement );	
		if ( msg != '')
		{
			sMsg += ( '\n' + msg);
		}
	}
	for ( var i = 0; i < aForm.StatusWithOrganisation.options.length ; i++ )
	{
		if ( aForm.StatusWithOrganisation.options[i].selected )				
		{
			iSelected++;
		}
	}
	
	if ( bRegistrationForm == false && iSelected == 0 )
	{
		sMsg += '\nYou must select your status with the organisation.';
		validates = false;
				
		if ( bHighLightElement )
		{
			aForm.StatusWithOrganisation.style.backgroundColor = bgColor
		}
	}
	
	iSelected = 0;
	
	if ( bRegistrationForm == false && IsBlank( aForm.Address1.value ) ) 
	{
		sMsg += '\nYou must supply an address.';
		validates = false;
		
		if ( bHighLightElement )
		{
			aForm.Address1.style.backgroundColor = bgColor
		}
	}
	
	if ( bRegistrationForm == false && IsBlank( aForm.PostCode.value ) ) 
	{
		sMsg += '\nYou must supply a postcode.';
		validates = false;
		
		if ( bHighLightElement )
		{
			aForm.PostCode.style.backgroundColor = bgColor
		}
	}
	
	//for ( var i = 0; i < aForm.CompanySector.options.length ; i++ )
	//{
	//	if ( aForm.CompanySector.options[i].selected )				
	//	{
	//		iSelected++;
	//	}
	//}
	
	//if ( iSelected == 0 )
	//{
	//	sMsg += '\nYou must select your company status.';
	//	validates = false;
		
	//	if ( bHighLightElement )
	//	{
	//		aForm.CompanySector.style.backgroundColor = bgColor
	//	}
	//}
	
	iSelected = 0;
	
	for ( var i = 0; i < aForm.CompanySize.options.length ; i++ )
	{
		if ( aForm.CompanySize.options[i].selected )				
		{
			iSelected++;
		}
	}
	
	if ( iSelected == 0 )
	{
		sMsg += '\nYou must select your company size.';
		validates = false;
		
		if ( bHighLightElement )
		{
			aForm.CompanySize.style.backgroundColor = bgColor
		}
	}
	
	iSelected = 0;
	
	if ( !validates )
	{
		alert(sMsg);
		validates = true;
		sMsg='';
		iSelected = 0;
		return false;
	}
	else
	{
		//validates = true;
		//sMsg='';
		iSelected = 0;
		return true;
	}
	
}
	
function ValidateEmailTo( aForm )
{
	var sMsg='';
	var bHighLightElement = false;
	var bgColor = 'red';
	var elt = aForm.RecipientEmail.value;
			
	if( arguments.length > 1)
	{
		bHighLightElement = arguments[1] ;
	}
			
	if( IsBlank(elt) || !( CheckValidEmail(elt))  )
	{
		sMsg = sMsg + 'You must supply a valid recipient email address.\n';
		
		if ( bHighLightElement )
		{
			elt.style.backgroundColor = bgColor
		}
	}
	
	elt = aForm.SenderEmail.value;
	
	if( IsBlank(elt) || !( CheckValidEmail(elt))  )
	{
		sMsg = sMsg + 'You must supply a valid email address.\n';
		
		if ( bHighLightElement )
		{
			elt.style.backgroundColor = bgColor
		}
	}
	elt = aForm.Message.value;
	if ( IsBlank(elt) )
	{
		sMsg = sMsg + 'You must supply a message.';
		
		if ( bHighLightElement )
		{
			elt.style.backgroundColor = bgColor
		}
	}
	
	if ( sMsg != '')
	{
		alert(sMsg);
		return false;
	}
	else
	{
		return true;
	}
}
function ValidateRegisterForm( aForm )
{
	var bHighLightElement = false;
					
	if( arguments.length > 1)
	{
		bHighLightElement = arguments[1] ;
	}
	
	return ValidateAccountForm( aForm , bHighLightElement , true );
		
}
	
function ValidatePassword( aForm )
{
	var sMsg='';
	var bHighLightElement = false;
	var bgColor = 'red';
	
	if( arguments.length == 2 )
	{
		bHighLightElement = arguments[1] ;
	}
	
	if ( IsBlank( aForm.Password.value ) && IsBlank( aForm.ConfirmPassword.value ) ) 
	{
		sMsg='You must provide and confirm a password.';
		
		if( bHighLightElement == true )
		{
			aForm.Password.style.backgroundColor = bgColor;
			aForm.ConfirmPassword.style.backgroundColor = bgColor;
		}
	}
	else if ( IsBlank( aForm.Password.value )  && IsBlank( aForm.ConfirmPassword.value ) ) 
	{
		sMsg ='Please confirm your password.';
		if( bHighLightElement == true )
		{
			aForm.ConfirmPassword.style.backgroundColor = bgColor;
		}
	}
	else if ( aForm.Password.value != aForm.ConfirmPassword.value )
	{
		sMsg ='Passwords don\'t match.';
		
		if( bHighLightElement == true )
		{
			aForm.Password.style.backgroundColor = bgColor;
			aForm.ConfirmPassword.style.backgroundColor = bgColor;
		}
	}
	else if ( aForm.Password.value.length < 6 && aForm.ConfirmPassword.value.length < 6 )
	{
		sMsg='Passwords must contain 6 or more characters.';
		
		if( bHighLightElement == true )
		{
			aForm.Password.style.backgroundColor = bgColor;
			aForm.ConfirmPassword.style.backgroundColor = bgColor;
		}
	}
	else
	{
	
	}
	
	return sMsg;
	
}
function ValidateLogin( aForm )
{	
	var sMsg='';
	
	if( IsBlank( aForm.Username.value ) )
	{
		sMsg+='You must enter a username.\n';
	}
	
	if ( IsBlank( aForm.Password.value ) )
	{
		sMsg+='You must enter a password.\n';
	}
	
	if ( sMsg != '')
	{
		alert(sMsg);
		return false;
	}
	else
	{
		return true;
	}
}	

function ValidateTheCVAdviceForm( aForm )
{
	if ( IsBlank( aForm.from_name.value ) )
	{
		alert ('Please enter your name.');
		return false;
	}

	if ( IsBlank( aForm.from_email.value ) )
	{
		alert ('Please enter your email address.');
		return false;
	}
	else
	{
		if ( !CheckValidEmail(aForm.from_email.value) )
		{
			alert ('Please enter a valid email address.');
			return false;
		}
	}

	if ( IsBlank( aForm.from_tel.value ) )
	{
		alert ('Please enter your telephone number.');
		return false;
	}
	
	if ( IsBlank( aForm.cv_file.value ) )
	{
		alert ('Please submit your CV.');
		return false;
	}
	return true;
}

function ValidateSingleJobLoader ( aForm )
{
	var sMsg='';
	var aErrors = new Array();
	var iErrors = 0;
	var bgColor = 'red';
	bHighLightElement = false;
	if( arguments.length == 2 )
	{
		bHighLightElement = arguments[1] ;
	}
	if ( IsBlank( aForm.sTitle.value ) )
	{
		sMsg += 'You must supply a job title.\n';		
		aErrors[iErrors] = aForm.sTitle ;
		iErrors++;
	}
	
	if ( !IsSelected( aForm.liEmployerTypeID ) )
	{
		sMsg += 'You must supply an employer type.\n';
		aErrors[iErrors] = aForm.liEmployerTypeID ;
		iErrors++;
	}
	
	if ( !IsSelected ( aForm.liLocationID ) )
	{
		sMsg += 'You must supply a location.\n';
		aErrors[iErrors] = aForm.liLocationID ;
		iErrors++;
	}
	
	if ( !IsSelected( aForm.liPositionTypeID ) )
	{
		sMsg += 'You must supply a position type.\n';
		aErrors[iErrors] = aForm.liPositionTypeID ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sDescription.value ) )
	{
		sMsg += 'You must supply a description.\n';
		aErrors[iErrors] = aForm.sDescription ;
		iErrors++;
	}
	
	if ( !IsSelected ( aForm.liSalaryRangeID ) )
	{
		sMsg += 'You must supply a salary range.\n';
		aErrors[iErrors] = aForm.liSalaryRangeID ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sDateFrom.value ) || !CheckDateFormatElt ( aForm.sDateFrom , false ) )
	{
		sMsg += 'You must supply a valid from date.\n';
		aErrors[iErrors] = aForm.sDateFrom ;
		iErrors++;
	}
	
	if ( !IsSelected( aForm.liRecruiterID ) )
	{
		sMsg += 'You must select an existing company.\n';
		aErrors[iErrors] = aForm.liRecruiterID ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sContactFirstName.value ) )
	{
		sMsg += 'You must supply a first name.\n';
		aErrors[iErrors] = aForm.sContactFirstName ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sContactLastName.value ) )
	{
		sMsg += 'You must supply a last name.\n';
		aErrors[iErrors] = aForm.sContactLastName ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sContactAddress1.value ) )
	{
		sMsg += 'You must supply an address.\n';
		aErrors[iErrors] = aForm.sContactAddress1 ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sContactPostcode.value ) )
	{
		sMsg += 'You must supply a postcode.\n';
		aErrors[iErrors] = aForm.sContactPostcode ;
		iErrors++;
	}
	
	if ( IsBlank ( aForm.sContactEmail.value ) || !CheckValidEmail ( aForm.sContactEmail.value ) )
	{
		sMsg += 'You must supply a valid email address.\n';
		aErrors[iErrors] = aForm.sContactEmail ;
		iErrors++;
	}
	
	if ( sMsg != '' )
	{
		for( var i = 0; i < aErrors.length ; i++)
		{
			aErrors[i].style.backgroundColor = bgColor;
		}
		
		alert(sMsg);
		return false;
	}
	else 
	{
		return true;
	}
}

// function to test if an element is selected
function IsSelected ( elt)
{
	var iSelected = 0;
	
	for ( var i = 0; i < elt.options.length ; i++ )
	{
		if ( elt.options[i].selected && elt.options[i].value != '' )				
		{
			iSelected++;
		}
	}
	
	if ( iSelected > 0)
	{
		return true;
	}
	else
	{
		return false;
	}

}

function IsBlank( sIn )
{
	var bBlank = true ;
	var s = '' + sIn + '';
	var c;
	if ( s != null )
	{
		for ( var i = 0; i < s.length; i++ )
		{
			c = s.charAt(i);
			if ( !c.IsWhiteSpace() ) 
			{
				bBlank = false;
			}
		}
	}
	return bBlank;
}