if (email == "" || email == "E-mail address") { alert('Please enter an email address!'); return false; } var emailRegExp = new RegExp("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"); if (!emailRegExp.test(email) || email.indexOf('.') == -1) { alert('The email address that you entered is invalid!'); return false; } return true; }

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Article citations

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Ohly, H., Pealing, J., Hayter, A., Pettinger, C., Pikhart, H., Watt, R. and Rees, G. (2013) Parental Food Involvement Predicts Parent and Child Intakes of Fruits and Vegetables. Appetite, 69, 8-14.
http://dx.doi.org/10.1016/j.appet.2013.05.003

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