//********************XMLHTTP Stuff********************

//** Processes every time there is a state change from the XMLHTTP request (makes
//** sure we dont do anything until were ready.)
function processReqChange() 
  {    
      var resparr;          
      // only if req shows "complete"
      if (req.readyState == 4) {
          // only if "OK"
          if (req.status == 200) {
              // ...processing statements go here...                
              response = req.responseText;
              //response always comes back as a comma delimited array, first element is the function that is retrieving
              resparr = response.split(',');                
              if (resparr[0] == 'REMOVE') {
                //We just removed a product
                if (resparr[1] == 'SUCCESS') {
                  window.location.href = "/store/cart.asp";
                } else {
                  window.location.href= "/error.asp";
                }
              } else {
                window.location.href= "/error.asp";
              }   
          } else if (resparr[0] == 'RECALCULATE') { 
            //Cart was recalculated
            if (resparr[1] == 'SUCCESS') {
              window.location.href = "/store/cart.asp";
            } else {
              window.location.href= "/error.asp";
            }
          }          
          else {                      
            alert("There was a problem retrieving the XML data:\n" + req.statusText);
          }
      }
  }

   
function removeitem(cartitemid) {          
	var querystr;
	if (cartitemid != '') {  	            
    loadXMLDoc('http://www.openroadjourney.com/store/s_removecartitem.asp','cartitemid=' + cartitemid);
  } else {
    window.location.href= "/error.asp";
  }        
}    


function checkquantity(cartitemids) {          
  var frm = document.forms.cart; 
  var arr;  
  var v;
  
  if (cartitemids != '') {  
    // the quantity value for all the cartitems	    
    arr = cartitemids.split(',');
    for (i=0;i<arr.length;i++) {
      v = eval('frm.item'+ arr[i]+'.value');      
      if (v < 0 || v > 99 || v == '' || isNaN(v) || Math.round(v) != v) {
        alert('We\'re sorry. A quantity you have entered is not valid. Please enter a whole number quantity between 0 and 99.')
        eval('frm.item'+ arr[i]+'.focus()');
        return false; 
      }
    }      
  frm.recalculate.value = 1; 
  frm.submit();     
  }    
}