// JavaScript Document

function update(precio,item){
 var precio;
 var item;
 var sum1 = precio;
 var sum2 = document.getElementById("quantity_"+item).value;
 var suma = sum1 * sum2;
document.getElementById("price_"+item).value = suma;
}

function total(){
document.getElementById("totall").value=0;
for(i=1; i <= 10; i++ ) {
document.getElementById("totall").value=Math.round((document.getElementById("totall").value*1)+((document.getElementById("price_"+i).value*1)),0);
}
}