//------------------- for clearing and replacing text in form input fields and textareas -------------------//
function clearText(thefield) {
  if (thefield.defaultValue==thefield.value) { thefield.value = "" }
} 
function replaceText(thefield) {
  if (thefield.value=="") { thefield.value = thefield.defaultValue }
}

function ValidateDataSmall(theForm)
{
	if (theForm.contactDate.value != "")
	{
		return false;
	}
	
	if ((theForm.txt_Small_firstname.value == "") || (theForm.txt_Small_firstname.value == 'First Name'))
	{
		alert('Please, enter your First Name.');
		theForm.txt_Small_firstname.focus();
		return false;
	}
	
	if ((theForm.txt_Small_Lastname.value == "") || (theForm.txt_Small_Lastname.value == 'Last Name'))
	{
		alert('Please, enter your Last Name.');
		theForm.txt_Small_Lastname.focus();
		return false;
	}
	
	if ((theForm.txt_Small_Email.value == "") || (theForm.txt_Small_Email.value == 'Email'))
	{
		alert('Please, enter your email.');
		theForm.txt_Small_Email.focus();
		return false;
	}
	else
	{
		if(!ValidateEmail(theForm.txt_Small_Email.value))
		{
			alert("Please check the emails address");
			theForm.txt_Small_Email.focus();
			return false;
		}
	}
		
	if ((theForm.txt_Small_Comments.value == "") || (theForm.txt_Small_Comments.value == 'Comment'))
	{
		alert('Please, enter your comments.');
		theForm.txt_Small_Comments.focus();
		return false;
	}
}

function ValidateEmail(incoming) 
{
	var emailstring = incoming;
	var ampIndex = emailstring.indexOf("@");
	var afterAmp = emailstring.substring((ampIndex + 1), emailstring.length);
	// find a dot in the portion of the string after the ampersand only
	var dotIndex = afterAmp.indexOf(".");
	// determine dot position in entire string (not just after amp portion)
	dotIndex = dotIndex + ampIndex + 1;
	// afterAmp will be portion of string from ampersand to dot
	afterAmp = emailstring.substring((ampIndex + 1), dotIndex);
	// afterDot will be portion of string from dot to end of string
	var afterDot = emailstring.substring((dotIndex + 1), emailstring.length);
	var beforeAmp = emailstring.substring(0,(ampIndex));
	//var email_regex = /^\w(?:\w|-|\.(?!\.|@))*@\w(?:\w|-|\.(?!\.))*\.\w{2,3}/ 
	// index of -1 means "not found"
	
	if ((emailstring.indexOf("@") != "-1") &&
		(emailstring.indexOf(".") != "-1") &&
		(emailstring.length > 5) &&
		(afterAmp.length > 0) &&
		(beforeAmp.length > 1) &&
		(afterDot.length > 1) //&&
		//(email_regex.test(emailstring))
		) 
	{
		return true;
	} 
	else {
		return false;
	}
}