public void setMultipleSeparator(final String multipleSeparator) {
        if (multipleSeparator != null)
            attrMixin.setAttribute(MULTIPLE_SEPARATOR, multipleSeparator);
        else
            attrMixin.removeAttribute(MULTIPLE_SEPARATOR);
    }
public void setMultipleSeparator ( final String multipleSeparator ) { if ( multipleSeparator != null ) attrMixin . setAttribute ( MULTIPLE_SEPARATOR , multipleSeparator ) ; else attrMixin . removeAttribute ( MULTIPLE_SEPARATOR ) ; }
Sets the character displayed in the button that separates
selected options.<br>
<br>
Defaults to <code>, </code>.

@param multipleSeparator