function enlarge(file){
	document.getElementById('iBIG').src=file;
}	  	 
function pitemchk1(){
	//document.form1.checkbox1.checked=false;
	document.form1.checkbox1.disabled=true;
	document.form1.category1.disabled=true;
	document.form1.checkbox2.disabled=true;
	document.form1.category2.disabled=true;
	//document.form1.checkbox3.disabled=true;
	//document.form1.category3.disabled=true;
	//document.form1.checkbox4.disabled=true;
	//document.form1.category4.disabled=true;
	//document.form1.checkbox5.disabled=true;
	//document.form1.category5.disabled=true;
	document.form1.checkbox6.disabled=true;
	document.form1.category6.disabled=true;
	
	
	document.form1.pcheckbox1.disabled=true;
	document.form1.pcategory1.disabled=true;	
	document.form1.pcheckbox12.disabled=true;
	document.form1.pcategory12.disabled=true;
	//document.form1.pcheckbox2.disabled=true;
	//document.form1.pcategory2.disabled=true;
	//document.form1.pcheckbox22.disabled=true;
	//document.form1.pcategory22.disabled=true;
	//document.form1.pcheckbox3.disabled=true;
	//document.form1.pcategory3.disabled=true;
	document.form1.pcheckbox32.disabled=true;
	document.form1.pcategory32.disabled=true;
	//document.form1.pcheckbox4.disabled=true;
	//document.form1.pcategory4.disabled=true;
	//document.form1.pcheckbox42.disabled=true;
	//document.form1.pcategory42.disabled=true;
	//document.form1.pcheckbox5.disabled=true;
	//document.form1.pcategory5.disabled=true;
	//document.form1.pcheckbox52.disabled=true;
	//document.form1.pcategory52.disabled=true;
	//document.form1.pcheckbox6.disabled=true;
	//document.form1.pcategory6.disabled=true;
	//document.form1.pcheckbox62.disabled=true;
	//document.form1.pcategory62.disabled=true;


	  if(document.form1.pcheckbox1.checked){
	  document.form1.pcategory1.disabled=false;
	  }else{
	  document.form1.pcategory1.disabled=true;
	  }
	  }
	  	  function pitemchk12(){
	  if(document.form1.pcheckbox12.checked){
	  document.form1.pcategory12.disabled=false;
	  }else{
	  document.form1.pcategory12.disabled=true;
	  }
	  }
	  	  function pitemchk2(){
	  if(document.form1.pcheckbox2.checked){
	  document.form1.pcategory2.disabled=false;
	  }else{
	  document.form1.pcategory2.disabled=true;
	  }
	  }
	  	  function pitemchk22(){
	  if(document.form1.pcheckbox22.checked){
	  document.form1.pcategory22.disabled=false;
	  }else{
	  document.form1.pcategory22.disabled=true;
	  }
	  }
	  	  function pitemchk3(){
	  if(document.form1.pcheckbox3.checked){
	  document.form1.pcategory3.disabled=false;
	  }else{
	  document.form1.pcategory3.disabled=true;
	  }
	  }
	  	  function pitemchk32(){
	  if(document.form1.pcheckbox32.checked){
	  document.form1.pcategory32.disabled=false;
	  }else{
	  document.form1.pcategory32.disabled=true;
	  }
	  }
	   	  function pitemchk4(){
	  if(document.form1.pcheckbox4.checked){
	  document.form1.pcategory4.disabled=false;
	  }else{
	  document.form1.pcategory4.disabled=true;
	  }
	  }
	   	  function pitemchk42(){
	  if(document.form1.pcheckbox42.checked){
	  document.form1.pcategory42.disabled=false;
	  }else{
	  document.form1.pcategory42.disabled=true;
	  }
	  }
	  	  function pitemchk5(){
	  if(document.form1.pcheckbox5.checked){
	  document.form1.pcategory5.disabled=false;
	  }else{
	  document.form1.pcategory5.disabled=true;
	  }
	  }
	  	  function pitemchk52(){
	  if(document.form1.pcheckbox52.checked){
	  document.form1.pcategory52.disabled=false;
	  }else{
	  document.form1.pcategory52.disabled=true;
	  }
	  }
	  	  function pitemchk6(){
	  if(document.form1.pcheckbox6.checked){
	  document.form1.pcategory6.disabled=false;
	  }else{
	  document.form1.pcategory6.disabled=true;
	  }
	  }
	  	  function pitemchk62(){
	  if(document.form1.pcheckbox62.checked){
	  document.form1.pcategory62.disabled=false;
	  }else{
	  document.form1.pcategory62.disabled=true;
	  }
	  }
	  	  function itemchk1(){
	  if(document.form1.checkbox1.checked){
	  document.form1.category1.disabled=false;
	  }else{
	  document.form1.category1.disabled=true;
	  }
	  }
	  function itemchk2(){
	  if(document.form1.checkbox2.checked){
	  document.form1.category2.disabled=false;
	  }else{
	  document.form1.category2.disabled=true;
	  }
	  }
	  function itemchk3(){
	  if(document.form1.checkbox3.checked){
	  document.form1.category3.disabled=false;
	  }else{
	  document.form1.category3.disabled=true;
	  }
	  }function itemchk4(){
	  if(document.form1.checkbox4.checked){
	  document.form1.category4.disabled=false;
	  }else{
	  document.form1.category4.disabled=true;
	  }
	  }function itemchk5(){
	  if(document.form1.checkbox5.checked){
	  document.form1.category5.disabled=false;
	  }else{
	  document.form1.category5.disabled=true;
	  }
	  }function itemchk6(){
	  if(document.form1.checkbox6.checked){
	  document.form1.category6.disabled=false;
	  }else{
	  document.form1.category6.disabled=true;
	  }
	  }
function caculate(){
var amount = 0;
var pamount =0;
var price =250;
var pprice =250;
var scount = 0;
var discount =0;
	if (document.form1.pcheckbox1.checked){
  pamount += (document.form1.pcategory1.options[document.form1.pcategory1.selectedIndex].value)*1;
  }	if (document.form1.pcheckbox12.checked){
  pamount += (document.form1.pcategory12.options[document.form1.pcategory12.selectedIndex].value)*1;
  }	if (document.form1.pcheckbox2.checked){
  pamount += (document.form1.pcategory2.options[document.form1.pcategory2.selectedIndex].value)*1;
  }	if (document.form1.pcheckbox22.checked){
  pamount += (document.form1.pcategory22.options[document.form1.pcategory22.selectedIndex].value)*1;
  }	if (document.form1.pcheckbox3.checked){
  pamount += (document.form1.pcategory3.options[document.form1.pcategory3.selectedIndex].value)*1;
  }	if (document.form1.pcheckbox32.checked){
  pamount += (document.form1.pcategory32.options[document.form1.pcategory32.selectedIndex].value)*1;
  }	if (document.form1.pcheckbox4.checked){
  pamount += (document.form1.pcategory4.options[document.form1.pcategory4.selectedIndex].value)*1;
  } if (document.form1.pcheckbox42.checked){
  pamount += (document.form1.pcategory42.options[document.form1.pcategory42.selectedIndex].value)*1;
  } if (document.form1.pcheckbox5.checked){
  pamount += (document.form1.pcategory5.options[document.form1.pcategory5.selectedIndex].value)*1;
  } if (document.form1.pcheckbox52.checked){
  pamount += (document.form1.pcategory52.options[document.form1.pcategory52.selectedIndex].value)*1;
  } if (document.form1.pcheckbox6.checked){
  pamount += (document.form1.pcategory6.options[document.form1.pcategory6.selectedIndex].value)*1;
  } if (document.form1.pcheckbox62.checked){
  pamount += (document.form1.pcategory62.options[document.form1.pcategory62.selectedIndex].value)*1;
  }	if (document.form1.checkbox1.checked){
  amount += (document.form1.category1.options[document.form1.category1.selectedIndex].value)*1;
  } if (document.form1.checkbox2.checked){
  amount += (document.form1.category2.options[document.form1.category2.selectedIndex].value)*1;
  } if (document.form1.checkbox3.checked){
  amount += (document.form1.category3.options[document.form1.category3.selectedIndex].value)*1;
  }	if (document.form1.checkbox4.checked){
  amount += (document.form1.category4.options[document.form1.category4.selectedIndex].value)*1;
  }	if (document.form1.checkbox5.checked){
  amount += (document.form1.category5.options[document.form1.category5.selectedIndex].value)*1;
  }	if (document.form1.checkbox6.checked){
  amount += (document.form1.category6.options[document.form1.category6.selectedIndex].value)*1;
  } if(((amount+pamount)!=0) &&((amount+pamount) < 3)){
  document.form1.paynum.value = (amount*price)+(pamount*pprice);
  document.form1.pay.value = (amount*price)+(pamount*pprice)+100;
  document.form1.pay.value += "(含運費100元)";
    document.form1.discount.value=discount*100;
  } if((amount+pamount) >= 3){
	if((amount+pamount) >= 5){
  scount=amount+pamount;
  while(scount>=5){
  scount-=5;
  discount++;
  }
   
  document.form1.pay.value = (amount*price)+(pamount*pprice)-(discount*100);
  document.form1.discount.value=discount*100;
    discount="(已折扣"+discount+"00元)";
  document.form1.pay.value +=discount; 
  document.form1.paynum.value = (amount*price)+(pamount*pprice)-(discount*100);
  }else{
  document.form1.paynum.value = (amount*price)+(pamount*pprice);
  document.form1.pay.value = (amount*price)+(pamount*pprice);
    document.form1.pay.value += "(免運費)";
    document.form1.discount.value=discount*100;
  }
  }
  document.form1.address.value=document.form1.city.options[document.form1.city.selectedIndex].text +document.form1.town.options[document.form1.town.selectedIndex].text + document.form1.addr.value;
}
function check(form){
if (form.name.value.length == 0) { alert("請輸入收貨人姓名"); return false }
if (form.email.value.length == 0) { alert("一定要輸入email"); return false }
if (form.email.value.indexOf("@") == -1) { alert("請輸入正確的電子郵件"); return false }
if (form.email.value.indexOf(".") == -1) { alert("請輸入正確的電子郵件"); return false }
if (form.phone.value.length == 0) { alert("一定要輸入連絡電話"); return false }
if (form.phone.value.length < 8) { alert("請輸入正確的連絡電話"); return false }
if (form.addr.value.length == 0) { alert("一定要輸入收貨地址"); return false }
if (form.addr.value.length < 4) { alert("請輸入正確的收貨地址"); return false }
caculate();
if(form.pay.value == 0){alert("請選擇產品和數量"); return false}

return true
}