function ResetLargeNewsletter(){

	var txtFirstName = getElementNewsletterLarge('txtFirstName');
	txtFirstName.value = txtFirstName.defaultValue;
	var txtComments = getElementNewsletterLarge('txtComments');	
	txtComments.value = txtComments.defaultValue;	
	var txtEmail = getElementNewsletterLarge('txtEmail');
	txtEmail.value = txtEmail.defaultValue;
}
function OnSubmitLargeNewsletter()
{
	var txtFirstName = getElementNewsletterLarge('txtFirstName');	
	var txtEmail = getElementNewsletterLarge('txtEmail');	
	var txtComments = getElementNewsletterLarge('txtComments');	
	
	var contactDate = getElementNewsletterLarge('contactDate');	
	var hdnContactFormID = getElementNewsletterLarge('hdnContactFormID');
	var hdnContactFormType = getElementNewsletterLarge('hdnContactFormType');

	if (ValidateDataLargeNewsletter(txtFirstName, txtEmail, txtComments,contactDate)==true)	
	{
		element = getElementNewsletterLarge('NewsletterLargeSignUp');
		element.value = 'Yes';
		var FormLargeNewsletter=document.getElementById('FormLargeNewsletter');
		FormLargeNewsletter.submit();
		return true;
	}	
	return false;
}


function ValidateDataLargeNewsletter(FirstName, Email, Comment, contactDate)
{
	if (contactDate.value != "")
	{
		return false;
	}
	
	FirstName.value=trim(FirstName.value);  	
  	Email.value=trim(Email.value);  	
  	Comment.value=trim(Comment.value);
	
	if (FirstName.value == "")
	{
		alert('Please, enter your name.');
		FirstName.focus();
		return false;
	}
	else
	{
		if (!ValidateName(FirstName.value))
		{
			alert('Please, check your name.');
			FirstName.focus();
			return (false);
		}
		if (!ValidateConsonants(FirstName.value))
		{
			alert('Please, check your name.');
			FirstName.focus();
			return (false);
		}	
	}
			

	
	if ((Email.value == "") || (Email.value == Email.defaultValue))
	{
		alert('Please, enter your email.');
		Email.focus();
		return false;
	}
	else
		{
			if(!ValidateEmailCharacters(Email.value))
			{
				alert("Please check your email.");
				Email.focus();				
				return false;
			}
			if(!ValidateEmail(Email.value))
			{
				alert("Please check your email.");
				Email.focus();				
				return false;
			}
			if(!ValidateEmailDomain(Email.value))
			{
				alert("Please check your email, domain (.ru, .sk, .ua) isn't valid.");
				Email.focus();				
				return false;
			}

			if(!ValidateConsonants(Email.value))
			{
				alert("Please check your email.");
				Email.focus();				
				return false;
			}
		}
	
	if ((Comment.value == "") || (Comment.value == Comment.defaultValue))
	{
		alert('Please, enter your comments.');
		Comment.focus();
		return false;
	}

	return true;
}

function ValidateEmail(valor) 
{    
    if (/^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/.test(valor))
     return true;
    else
     return false;
}
function HasNumbers(valor) 
{
    if (/[0-9]/.test(valor))
            return true;
    else
            return false;
}



function clearText(thefield) {
  if (thefield.defaultValue==thefield.value) { thefield.value = "" }
}
 
function replaceText(thefield) {
  if (thefield.value=="") { thefield.value = thefield.defaultValue }
}

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

function getElementNewsletterLarge(name)
{
	var object = null;
	var tbLargeContact=document.getElementById('tbLargeNewsletter'); 
	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 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 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 ValidateEmailDomain(valor) 
{
	valor = valor.toLowerCase();
	if (/.ru$|.sk$|.ua$/i.test(valor))
		return false;	
	else
		return true;
}