Fix a javascript error in the registration page when security level w…

…as higher than the minimum - thanks scripple for reporting and fixing my bug

Signed-off-by: emanuele <emanuele45@gmail.com>

themes/default/scripts/register.js

@@ -162,7 +162,7 @@ elkRegister.prototype.refreshMainPassword = function(called_from_verify)
 		// Any reserved fields?
 		for (var i in this.verificationFields)
 		{
-			if (this.verificationFields.i[4] === 'reserved' && this.verificationFields.i[1].value && curPass.indexOf(this.verificationFields.i[1].value) !== -1)
+			if (this.verificationFields[i][4] === 'reserved' && this.verificationFields[i][1].value && curPass.indexOf(this.verificationFields[i][1].value) !== -1)
 				stringIndex = 'password_reserved';
 		}