Revision e1218f0f src/gr/grnet/pithos/web/client/PermissionsAddDialog.java

b/src/gr/grnet/pithos/web/client/PermissionsAddDialog.java
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        String selected = null;
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		if (userAdd) {
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			selected = userBox.getText().trim();
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			RegExp emailValidator = RegExp.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$", "i");
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			RegExp emailValidator = RegExp.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+[.][A-Z]{2,4}$", "i");
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			if (!emailValidator.test(selected)) {
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				app.displayWarning("Username must be a valid email address");
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				return;

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