<?php
	$classes = array( 'one-fourth' );
	
    // additional classes
    if( $class != '' )    
        $classes[] = $class;
	
	// last
	$classes[] = (isset($last) && strcmp($last, 'yes') == 0) ? 'last' : '';
?>

<div class="<?php echo implode( $classes, ' ' ); ?>"><?php echo yit_addp($content); ?></div>