function checkQt(ckitm,qt) {
    if (ckitm.checked) {
        document.getElementById(qt).value = "1";
    } else { document.getElementById(qt).value = "";}
        
}

function changePrice(item) {
  // not in use
  //if ( item.value == "Java") {
  //      alert ("add 50 ");
  //}
}

function validate() {
        var orders = "";
        var pattern="[^0-9$]+";
        var found = false;

    try  {
        var elements = document.getElementsByTagName('input');
        for (var i = 0; i < elements.length; i++) {
             nme =  new String (elements.item(i).getAttribute('name'));
             value = elements.item(i).value;

          if ( (nme.substring(0,2) == "qt") && (value != "") ) {
                if ( (value.match(pattern) != null ) || ( value == 0) ) {
                  alert("Please enter a valid number!" );
                  elements.item(i).select();
                  return false;
                }else { //append to orders
		 colorID = "color"+nme.substring(2,4); 
		 styleID = "style"+nme.substring(2,4);
		  orders += elements.item(i).getAttribute('item')+"|"+value+"|"+
				elements.item(i).getAttribute('price')+"|"+
				document.getElementById(colorID).value + " |"+
				document.getElementById(styleID).value + " |<<>>";
		 //alert (orders);
                  found = true;
                 }
          }
         }//forloop
        } //try
    catch (e) {
       alert ("ERROR in page. Please contact admin! message-->" + e.message);
    }

        if (!found) { 
          alert ("You must provide a valid quantity for at least 1 item!");
	  return false;
        }else {
          //alert ("Thank you for ordering!\n" + orders);
	  document.cart.orders.value = orders;
	  return true;
        }

}


function makeRequest() {

        http_request = false;
        d = document.cart;

        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
                // See note below about this line
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }

        if (!http_request) {
            alert('Cannot create an XMLHTTP instance');
            return false;
        }

	   url = "/ny/cart.cgi?action=viewcart&ms=" + new Date().getTime();
           http_request.onreadystatechange = alertContents;
           http_request.open('GET', url, true);
           http_request.send(null);
}

function alertContents() {
         
        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
                //alert ( http_request.responseText);
                if ( http_request.responseText == "" ) {
                   alert ("There was a problem with viewing cart!");
                }
                else { 
                   document.cart.cartview.value = http_request.responseText;
                }
            }else {
                alert('There was a problem with the request.');
            }
        }

}