function popup(link) {
        window.open(link, '', 'width=800,height=700,scrollbars=no');
    }

function textCounter( field, countfield, maxlimit ) {
    if ( field.value.length > maxlimit )
	{
	    field.value = field.value.substring( 0, maxlimit );
	    alert( 'Textarea exceed character limit.' );
	    return false;
	}
    else
	{
	    countfield.value = maxlimit - field.value.length;
	}
}