//Called when change currency_code in drop-down menu
function updatePrice() {
var _v = document.price.currency_code.selectedIndex;
var _x = document.price.currency_code[_v].value;
var _y = eval(_x);
document.price.tot.value=curr[_y];
changesize(document.price.size.value)
}

//Called when change size in drop-down menu
function changesize(size) { 
if (size == 'i10')
{
document.price.amount.value=Math.ceil(Sizes[0]*document.price.tot.value)+".00";
document.price.os0.value=" 10in x 8in print, sent in presentation folder."
}
if (size == 'i20')
{
document.price.amount.value=Math.ceil(Sizes[1]*document.price.tot.value)+".00";
document.price.os0.value=" 20in x 16in print, sent rolled in tube."
}
}