function isValidEmailAddress(strEmailAddress){
		var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		if(!filter.test(strEmailAddress))
			{
				return false;
			}
		return true;
}


function isValidNumeric(theValue)
	{
		var chr;
		theValue=trim(theValue);
		for(var i=0;i<theValue.length;i++)
		{
			chr=theValue.charAt(i)
			if( !(chr>='0' &&  chr <= '9') )
			{
				return false;
			} 
		} 
		
		return true;
	}
	
	function trim(stringToTrim)
	{
		return stringToTrim.replace(/^\s+|\s+$/g, '');
	}


function submitSideForm(){
		var home = $('#home').val();
		var mail = $('#mail').val();
		var pNumber = $('#pNumber').val();
		var lessonDate = $('#lessonDate').val();
		var pCode = $('#pCode').val();
		
		if(home=="")
		{
			alert("Enter your home.");
			return false;
		}
		else if(mail=="")
		{
			alert("Enter your email address.");
			return false;
		}
		else if(!isValidEmailAddress(mail))
		{
			alert("Enter your valid email address.");
			return false;
		}
		else if(pNumber=="")
		{
			alert("Enter your phone number.");
			return false;
		}
		else if(!isValidNumeric(pNumber))
		{
			alert("Sorry...you can only enter numeric characters in the phone number field.");
			return false;
		}
		else if(lessonDate=="")
		{
			alert("Enter the lesson date.");
			return false;
		}
		else if(pCode=="")
		{
			alert("Enter your the postcode.");
			return false;
		}
		else if(!isValidNumeric(pCode))
		{
			alert("Sorry...you can only enter numeric characters in the postcode field.");
			return false;
		}
		$('#side').val('sideForm');
		$('#sideForm').submit();
	}