function onInit() {
	x = document.getElementById('cCell');
	if (screen.height > 768)
		x.style.height = '400px';
}

function formcheck(form, msg)
{
	var letterField = document.getElementById("letterField");
	
	var regX = new RegExp(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*\.(\w{2}|(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum))$/);
	if (letterField.value == "" || !regX.test(letterField.value))
	{
		window.alert(msg);
		return false;
	}
}