function disable_enable()
{
	document.getElementById('btnSubmit').style.visibility="hidden";
	document.getElementById('btnSubmit2').style.visibility="visible";
}

function ValidateDataContact()
{
	var contactDate = document.getElementById('contactDate');
	var FirstName = getElementLarge('txtFirstName');
	var LastName = getElementLarge('txtLastName');	
	var RblGender = document.getElementsByName('rblGender');
	var Email = getElementLarge('txtEmail');
	var Address = getElementLarge('txtAddress');
	var City = getElementLarge('txtCity');
	var ddlState = document.getElementById('ddlState');
	var ddlCountry = document.getElementById('ddlCountry');
	var Phone = document.getElementById('txtPhone');
	var CellPhone = document.getElementById('txtCellPhone');

	FirstName.value=trim(FirstName.value);
	LastName.value=trim(LastName.value);
	Email.value=trim(Email.value);
	Address.value=trim(Address.value);
	City.value=trim(City.value);
	Phone.value=trim(Phone.value);
	CellPhone.value=trim(CellPhone.value);
	
	if (contactDate.value != "")
	{
		return false;
	}
	
	_gaq.push(['_trackEvent', 'Webform', 'Start Submit', 'Large Contact']);
	if (FirstName.value == "")
	{
		alert('Please, enter your first name.');
		FirstName.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - First Name', 'Large Contact']);
		return (false);
	}
	else
	{
		if(!ValidateName(FirstName.value))
		{
			alert("Please check your first name.");
			FirstName.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - First Name', 'Large Contact']);
			return false;
		}

		if(!ValidateConsonants(FirstName.value))
		{
			alert("Please check your first name.");
			FirstName.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - First Name', 'Large Contact']);
			return false;
		}
	}

	if (LastName.value == "")
	{
		alert('Please, enter your last name.');
		LastName.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Last Name', 'Large Contact']);
		return (false);
	}
	else
	{
		if(!ValidateName(LastName.value))
		{
			alert("Please check your last name.");
			LastName.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Last Name', 'Large Contact']);
			return false;
		}

		if(!ValidateConsonants(LastName.value))
		{
			alert("Please check your last name.");
			LastName.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Last Name', 'Large Contact']);
			return false;
		}
	}
	
	var selectId = "";
	for (var x = 0; x < RblGender.length; x ++) {
       if (RblGender[x].checked) 
       {
          selectId = RblGender[x].id;
       }
      }    
    
	if (selectId == "")
	{
		alert('Please, select your gender.');
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Gender', 'Large Contact']);
		return false;
	}
	

	if ((Email.value == "") || (Email.value == 'Email'))
	{
		alert('Please, enter your emails address.');
		Email.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Email', 'Large Contact']);
		return (false);
	}
	else
	{	
		if(!ValidateEmailCharacters(Email.value))
		{
		   	alert("Please check your emails address.");
		  	Email.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Email', 'Large Contact']);
		   	return false;
		}
		if(!ValidateEmail(Email.value))
		{
			alert("Please check your emails address.");
			Email.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Email', 'Large Contact']);
			return false;
		}
		if(!ValidateEmailDomain(Email.value))
		{
			alert("Please check your email address, domain (.ru, .sk, .ua) isn't valid.");
			Email.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Email', 'Large Contact']);
			return false;
		}

		if(!ValidateConsonants(Email.value))
		{
			alert("Please check your email address.");
			Email.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Email', 'Large Contact']);
			return false;
		}
	}
	
	if (Address.value == "")
	{
		alert('Please, enter your address.');
		Address.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Address', 'Large Contact']);
		return (false);
	}
	
	if (City.value == "")
	{
		alert('Please, enter your city.');
		City.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - City', 'Large Contact']);
		return (false);
	}
	else
	{
		if (!ValidateCityState(City.value))
		{
			alert("Please check your city.");
			City.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - City', 'Large Contact']);
			return false;
		}
		if(!ValidateConsonants(City.value))
		{
			alert("Please check your city.");
			City.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - City', 'Large Contact']);
			return false;
		}
	}
	
	if (ddlState.value == "")
	{
		alert('Please, select your state.');
		ddlState.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - State', 'Large Contact']);
		return false;
	}
		
	if (ddlCountry.value == "")
	{
		alert('Please, select your country.');
		ddlCountry.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Country', 'Large Contact']);
		return false;
	}
	
	if (Phone.value == "")
	{
		alert('Please, enter your phone number.');
		Phone.focus();
		_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Phone', 'Large Contact']);
		return (false);
	}
	else
	{
		if(!ValidatePhone(Phone.value))
		{
			alert("Please, enter a valid phone number.");
			Phone.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Phone', 'Large Contact']);
			return false;
		}
	}
	
	if (CellPhone.value != "")
	{
		if(!ValidatePhone(CellPhone.value))
		{
			alert("Please, enter a valid mobile phone number.");
			CellPhone.focus();
			_gaq.push(['_trackEvent', 'Webform', 'Validation Error - Cell Phone', 'Large Contact']);
			return false;
		}
	}	
	disable_enable();
	_gaq.push(['_trackEvent', 'Webform', 'Submit Ok', 'Large Contact']);
	return true;	
}

function trim(myString)
{
 return myString.replace(/^\s+/g,'').replace(/\s+$/g,'')
}


function getElementLarge(name)
{
	var object = null;
	var tbLargeContact=document.getElementById('tbLargeContact'); 
	for (var i=0; i<tbLargeContact.rows.length; i++)
    {
        for (var j=0; j<tbLargeContact.rows[i].cells.length; j++)
        {
            for (var k=0; k<tbLargeContact.rows[i].cells[j].childNodes.length; k++)
            {                
                if(tbLargeContact.rows[i].cells[j].childNodes[k].id == name)
                {
                    object = tbLargeContact.rows[i].cells[j].childNodes[k];
                    return object;
                }
            }
        }
        
    }    
}

	
function ValidateEmail(valor) 
{    
	var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9-]{2,60}(\.[a-zA-Z]{2,4}){1,2}$/;  
    return emailPattern.test(valor); 
}


function ValidatePhone(incoming)
{
	var ValidChars = "0123456789.()- ";
	var IsCorrect=true;
	var Char;

	for (cont = 0; cont < incoming.length && IsCorrect == true; cont++) 
	{ 
		Char = incoming.charAt(cont); 
		if (ValidChars.indexOf(Char) == -1) 
			return false;
	}
	return true;
}



function ValidateConsonants(valor) 
{
       valor = valor.toLowerCase();
	if (/[bcdfghjklmnpqrstvwxyz]{7}/.test(valor))
		return false;
	else
		return true;
}  


function ValidateName(valor) 
{
      	valor = valor.toLowerCase();
	if (/^[a-z ]+$/i.test(valor))
		return true;
	else
		return false;
} 

function ValidateEmailCharacters(valor)
{
	valor = valor.toLowerCase();
 	var ValidChars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";   
 	var Char;
 	var IsCorrect=true;
	
	for (cont = 0; cont < valor.length && IsCorrect == true; cont++) 
 	{ 
	  	Char = valor.charAt(cont); 
  		if (ValidChars.indexOf(Char) == -1) {
			return false;
		}
	}
	return true;
}

function ValidateEmailDomain(valor) 
{
	valor = valor.toLowerCase();
	if (/.ru$|.sk$|.ua$/i.test(valor))
		return false;	
	else
		return true;
}

function ValidateCityState(valor) 
{
	valor = valor.toLowerCase();
	if (/^[a-z ]+$/i.test(valor))
		return true;
	else
		return false;
}