function validateEmail(field) {
	var pattern = new RegExp('^[a-z0-9-_.]+@(?:[a-z0-9-]+\.)+[a-z]{2,4}$','i');
	var subject = field.value;
	if (pattern.test(subject)) {
		document.getElementById('status').firstChild.nodeValue = 'Valid';
	} else {
		document.getElementById('status').firstChild.nodeValue = 'Invalid';
	}
}
function lowerCase(word) {
	return word.substring(0,1).toLowerCase() + word.substring(1);
}
function populate() {
	var subCatData = new Array();
	subCatData['anime']   = 'Series,Episode(s),Movie(s),OVA(s)';
	subCatData['jdrama']  = 'Series,Episode(s)';
	subCatData['laction'] = 'Series,Episode(s)';
	subCatData['manga']   = 'Series,Chapter(s)';
	
	var catVal = document.getElementById('category').value;
	var subCat = document.getElementById('subcategory');
	
	subCat.options.length = null;
	
	if (catVal == '') {
		var newOption = new Option('Select a subcategory','');
		subCat.options[0] = newOption;
		return;
	}
	
	var pieces = subCatData[catVal].split(',');
	
	var newOption = new Option('Select a subcategory','');
	subCat.options[0] = newOption;
	
	for (var x = 0; x < pieces.length; x++) {
		var newOption = new Option(pieces[x],lowerCase(pieces[x]));
		var subCatLen = subCat.length;
		subCat.options[subCatLen] = newOption;
	}
}