next.onclick = function(){
var i = slideimg.style;
i.marginLeft = i.marginLeft >= max ? 0 : i.marginLeft+216;
}
document.getElementById('slideimg').style.marginLeft = x + "px";
//Наверное, так
$(price).each(function(i,price){
console.log($(opisanie_k[i]).text() + $(price).text() + '\n');
});