function Verify() {
	if ( document.getElementById('realname') ) {
		CustName = document.getElementById('realname').value;
		if ( CustName == '' ) {
			alert( 'Please enter your name.' );
			return false;
		}
	}
	
	if ( document.getElementById('email') ) {
		CustEmail = document.getElementById('email').value;
		if ( CustEmail == '' ) {
			alert( 'Please enter your email.' );
			return false;
		}
	}
	
	if ( document.getElementById('mobile') ) {
		MobileNo = document.getElementById('mobile').value;
		
		//replace non-integers with nothing
		Finder = new RegExp( "[^0-9]+", "g" );
		MobileNo = MobileNo.replace( Finder, '' );
		document.getElementById('mobile').value = MobileNo;
		
		//check mobile number entered is 11 chars long
		var MobileNoLength = MobileNo.length;
		if ( MobileNoLength != 11 ) {
			alert('The mobile phone number you have entered is not valid');
			return false;
		}
		
		//check Mobile number prefix ibegins with 07		
		Prefix = MobileNo.substring( 0 , 2 );
		if ( Prefix != '07' ) {
			alert('The mobile phone number you have entered is not valid');
			return false;
		}	

		//check Mobile number prefix does not begin with 070
		Prefix3 = MobileNo.substring( 0 , 3 );
		if ( Prefix3 == '070' ) {
			alert('The mobile phone number you have entered is not valid');
			return false;
		}	
	}

	return true;
}