// JavaScript Document
function total_price(qty,price,name)
 { 
 var qty_total=qty*price; 
 var gtotal;
 document.getElementById(name+'_sub').value=qty_total; 
 document.f1.sub_total.value=subtotal().toFixed(2);  
 document.f1.sub_total.readOnly=true;
 gtotal=(parseFloat(document.f1.postage.value)+parseFloat(document.f1.sub_total.value));
 document.f1.totalamount.value=gtotal;
 document.f1.totalamount.readOnly=true;
 //grand_total();
 }
 
 //by onblur calls total_price function and gives us the subtotal value ; 
 
function subtotal()
  {
  //palmetto_sub.sapphire_sub,wintergreen_sub,santana_sub,tall_sub,kikuyu_sub
  if(document.f1.palmetto_sub.value==''){
  var a=0;}
  else if(document.f1.palmetto_sub.value!=''){
  var a=parseFloat(document.f1.palmetto_sub.value);}
  
  if(document.f1.sapphire_sub.value==''){
  var b=0;}
  else if(document.f1.sapphire_sub.value!=''){
  var b=parseFloat(document.f1.sapphire_sub.value);}
  
  if(document.f1.wintergreen_sub.value==''){
  var c=0;}
  else if(document.f1.wintergreen_sub.value!=''){
  var c=parseFloat(document.f1.wintergreen_sub.value);}
  
  if(document.f1.tall_sub.value==''){
  var d=0;}
  else if(document.f1.tall_sub.value!=''){
  var d=parseFloat(document.f1.tall_sub.value);} 
  
   if(document.f1.santana_sub.value==''){
  var e=0;}
  else if(document.f1.santana_sub.value!=''){
  var e=parseFloat(document.f1.santana_sub.value);}
  
   if(document.f1.kikuyu_sub.value==''){
  var f=0;}
  else if(document.f1.kikuyu_sub.value!=''){
  var f=parseFloat(document.f1.kikuyu_sub.value);}
 // alert (e)
  var sub_total=a+b+c+d+e+f;
  
  return Math.abs(sub_total);    
  }
  
  //this fun
  
/*uncomment this function when the membership activated.
function grand_total(post)
 {
 //alert(num);
 var x=parseFloat(document.f1.sub_total.value);
 var y=parseFloat(post);
 if (post=='') {
 alert("Select your postage");
 document.f1.postage.focus(); 
 return false ;
 } 
 else if(y!=0){
	 //want to check weather the member ship checed or not
	 if(document.f1.member.checked== true)  
	 {       
	  document.f1.totalamount.value=(y+x+44).toFixed(2); 
      document.f1.totalamount.readOnly=true;   
	  }	 
	 else if (document.f1.member.checked== false)  {
	  document.f1.totalamount.value=(y+x).toFixed(2); 
      document.f1.totalamount.readOnly=true; 
	 } 
 } 
 }*/
 
 function grand_total(post)
 {
 //alert(num);
 var x=parseFloat(document.f1.sub_total.value);
 var y=parseFloat(post);
 if (post==0) {
 alert("Select your postage");
 document.f1.postage.focus(); 
 return false ;
 } 
 else if(y!=0){
	 //have to add the subtotal with the total;
	  document.f1.totalamount.value=(y+x).toFixed(2); 
      document.f1.totalamount.readOnly=true;   	  
 } 
 }
 
 //to subscribe as a members
 function subscribe()
   {
   if(document.f1.member.checked== true)  {
      var tot_mem=parseFloat(document.f1.totalamount.value)+44;
	  document.f1.totalamount.value=tot_mem.toFixed(2); 
	  document.f1.totalamount.readOnly=true;	  
	  }	 
	 else if (document.f1.member.checked== false)  {
	 var tot_mem=parseFloat(document.f1.totalamount.value)-44;
	  document.f1.totalamount.value=tot_mem.toFixed(2); 
	  document.f1.totalamount.readOnly=true;
	 }
   }