function Trim(s) 
{
  // Remove leading spaces and carriage returns
  
  while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r'))
  {
    s = s.substring(1,s.length);
  }

  // Remove trailing spaces and carriage returns

  while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r'))
  {
    s = s.substring(0,s.length-1);
  }
  return s;
}

function chkAll(frm)
{
	var obj;
		obj="document."+frm;
		//alert(eval(obj).elements.length);
	for(var i=0;i<eval(obj).elements.length;i++)
	{
		if(eval(obj).elements[i].name.substr(0,6)=="chkBox")
		{
			if(eval(obj).cx.checked==false)	eval(obj).elements[i].checked=false;
			else if(eval(obj).cx.checked==true) eval(obj).elements[i].checked=true;
		}

	}
}

function getHTTPObject() {
  var xmlhttp;
  /*@cc_on
  @if (@_jscript_version >= 5)
    try {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (E) {
        xmlhttp = false;
      }
    }
  @else
  xmlhttp = false;
  @end @*/
  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    try {
      xmlhttp = new XMLHttpRequest();
    } catch (e) {
      xmlhttp = false;
    }
  }
  return xmlhttp;
}
var http = getHTTPObject(); // We create the HTTP Object
var total=0;
var urlCart="../maintainCart.php?p=";
function addToCart(p)
{
	var action="add";
	var qtyObj=p.value;
	var qty=document.getElementById(p.value).value;
	if(qty>0)
	{
		
		if(document.getElementById('cartDiv'))
		{
		document.getElementById('cartDiv').innerHTML="<table><tr><td><img src=\"../images/mozilla_giallo.gif\"></td><td>please wait...</td></tr></table>";
		}
		if(p.checked==false) { action="delete"; document.getElementById(qtyObj).value=0; }
		http.open("GET", urlCart + escape(p.value+"_"+qty+"_"+action), true);
		http.onreadystatechange = handleHttpCartResponse;
		http.send(null);
	}
	else
	{
		alert("Please specify your quanity for this product.");
		document.getElementById(qtyObj).value=0;
		document.getElementById(qtyObj).focus();
		p.checked=false;
	}
}

function handleHttpCartResponse()
{
  if (http.readyState == 4) {
	  total=http.responseText;
	  if(total>1)
	  {
	  document.getElementById('cartDiv').innerHTML="<a href=\"../pages/cart.htm\">Total "+total+" items</a>";
	  }
	  else
	  {
	  document.getElementById('cartDiv').innerHTML="<a href=\"../pages/cart.htm\">Total "+total+" item</a>";
	  }
  }
}