Олег

(function () {

    var utm = 'utm_content',
        mtext = document.getElementsByClassName( 'mtext' )[0],
        location = window.location.toString(),
        number;

        if ( ! mtext || location.indexOf( utm + '=' ) === -1 ) return;

        mtext.innerHTML = 'Найти запчасть';

        number = ( location.substr( location.indexOf( utm + '=' ) + utm.length + 1, 50 ) ).toLowerCase();

        if ( number.indexOf( '&' ) !== -1 )
            number = number.substr( 0, number.indexOf( '&' ) );
        
        if ( number === 'logan' ) mtext.innerHTML = 'Найти запчасть для Renault Logan';
        if ( number === 'megan' ) mtext.innerHTML = 'Найти запчасть Renault Megan';

})();

for val in 2..3
	 .guitar-slider input[name='radiost']:nth-of-type({val}):checked ~ .radius-button-component .control-slide{val}
		.control__indicator
			&:after
				display block
				width 22px
				height 22px
				border-radius 10px
				background #4933f1

mixin product( data )
	.product
		.product__name= data.name
		.product__cost= data.cost

//- Один
+product( {name: 'Шоколадка', cost: '3$'} )

//- Несколько
each item in [{name: 'Шоколадка', cost: '3$'}, {name: 'Мороженка', cost: '1$'}]
	+product( item )

contentVideo
.play()
.on('timeupdate', function(){

    var currentTime = Math.round( this.currentTime() ),
        duration = Math.round( this.duration() ),
        percent = Math.round( currentTime / duration * 100 );

    return ( [0,25,50,75,100].indexOf( percent ) !== -1 ) ? postVideoStatus( percent ) : false;

});