function adds(){
n=document.more.size.value;
ajax();xhr.open('GET','script_en.php?adds='+n,false);xhr.send(null);
if(xhr.readyState==4){document.more.submit.disabled=true;document.getElementById('end').innerHTML=xhr.responseText;}}

function ftp(){
n=document.ftp.size.value;
m=document.ftp.term.options[document.ftp.term.selectedIndex].value;
ajax();xhr.open('GET','script_en.php?n='+n+'&m='+m,false);xhr.send(null);
if(xhr.readyState==4){document.ftp.submit.disabled=true;document.getElementById('end').innerHTML=xhr.responseText;}}

function order(i){
ajax();xhr.open('GET','script_en.php?order='+i,false);xhr.send(null);
if(xhr.readyState==4) document.getElementById('order').innerHTML=xhr.responseText;
document.getElementById('end').innerHTML='';}

function price(){
n=Number(document.ftp.size.value);
m=Number(document.ftp.term.options[document.ftp.term.selectedIndex].value);
if(n==10||n==25||n==100||(n>=250 && RegExp("^[0-9]+$","g").test(n/50))){
if(n==10) p=m*300;
if(n==25) p=m*600;
if(n==100) p=m*900;
if(n>=250) p=m*((n-250)*4+1000);
document.getElementById('DOD').innerHTML=p;
if(document.getElementById('EUR')) document.getElementById('EUR').innerHTML=p/100;
document.getElementById('error').innerHTML='';document.ftp.submit.disabled=false;}
else{
document.getElementById('DOD').innerHTML='?';
if(document.getElementById('EUR')) document.getElementById('EUR').innerHTML='?';
document.getElementById('error').innerHTML='Quantity invalid! Type 10, 25, 100, 250 or a larger number multiple of 50.';document.ftp.submit.disabled=true;}}

function price2(d,o){
n=Number(document.more.size.value);
if(n>o&&(n==25||n==100||(n>=250 && RegExp("^[0-9]+$","g").test(n/50)))){
if(o==10) r=d*300;
if(o==25) r=d*600;
if(o==100) r=d*900;
if(o>=250) r=d*o*4;
if(n==25) p=Math.round(d*600-r);
if(n==100) p=Math.round(d*900-r);
if(n>=250) p=Math.round(d*n*4-r);
document.getElementById('DOD').innerHTML=p;document.getElementById('error').innerHTML='';document.more.submit.disabled=false;}
else{
document.getElementById('DOD').innerHTML='?';
document.getElementById('error').innerHTML='Quantity invalid! Type 25, 100, 250 or a larger number multiple of 50.<br />The quantity must be greater than the current limit.';
document.more.submit.disabled=true;}}