function qty_up(target, inputmin){
element = document.getElementById(target);
currentvalue = eval(element.value);
newvalue = currentvalue + 1;
if (newvalue > 10) {newvalue = 10;}
element.value = newvalue;
}
function qty_down(target, inputmin){
element = document.getElementById(target);
currentvalue = eval(element.value);
newvalue = currentvalue - 1;
if (newvalue < inputmin) {newvalue = inputmin;}
element.value = newvalue;
}