function number_format( number, decimals, dec_point, thousands_sep ) {
    // *     example 1: number_format(1234.5678, 2, '.', '');
 
    var n = number, c = isNaN(decimals = Math.abs(decimals)) ? 2 : decimals;
    var d = dec_point == undefined ? "." : dec_point;
    var t = thousands_sep == undefined ? "," : thousands_sep, s = n < 0 ? "-" : "";
    var i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", j = (j = i.length) > 3 ? j % 3 : 0;
    
    return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
}


	var http_request = false;
	
   	function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } 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('Please enable Javascript');
         return false;
      }
      http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);

      return true;
   }
   
   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
           	//alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('results').innerHTML = result;     
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   function get(obj,toURL,thisarray,id) {

	var poststr='';
	var arLen=thisarray.length;

	for ( var i=0; i<arLen; ++i )
		{
			poststr = poststr + thisarray[i] + "=" + encodeURI( document.getElementById(thisarray[i]+id).value);
			if( i < arLen )
			{
				poststr = poststr + "&";
			}
		}
		
	 makePOSTRequest(toURL, poststr);
   }
   
   function getedit(obj,toURL,thisarray,id) {

	var poststr='';
	var arLen=thisarray.length;

	for ( var i=0; i<arLen; ++i )
		{
			poststr = poststr + thisarray[i] + "=" + encodeURI( document.getElementById(thisarray[i]+id).value);
			if( i < arLen )
			{
				poststr = poststr + "&";
			}
		}
	 makePOSTRequestEdit(toURL, poststr);
   }
   function makePOSTRequestEdit(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } 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('Please enable Javascript');
         return false;
      }
      http_request.onreadystatechange = alertContentsEdit;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
      
     return true;
   }
    function alertContentsEdit() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
           	//alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('results').innerHTML = result;    
			if(result==''){
				window.location.reload();
			}
            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   function changePrice(id,totalPrice)
   {
	if(!isNaN(totalPrice))
	{
			document.getElementById('price'+id).innerHTML = number_format(totalPrice, 2, '.', '');
	}
   }
   
   function updatePrice(id)
   {
	singlePrice = document.getElementById('singlePrice'+id).innerHTML;
	oldQuantity = document.getElementById('quantity'+id).value;
	if(!isNaN(singlePrice))
	{
		var quantity =parseFloat(document.getElementById("quantity"+ id).value);
		var finalPrice= parseFloat(singlePrice) * quantity;
		var oldPrice =  parseFloat(singlePrice) * oldQuantity;
		document.getElementById('price'+id).innerHTML= number_format(finalPrice, 2, '.', ''); 
	}
   }
   
   function shoppingCart(id)
   {
			var increaseCart = 0;
			var increasePrice = 0;

			increasePrice = document.getElementById('price'+ id).innerHTML;	
	  		var totalPrice = document.getElementById('cartValue').innerHTML;	
			totalPrice = parseFloat(totalPrice) + parseFloat(increasePrice);	
     		document.getElementById('cartValue').innerHTML = number_format(totalPrice, 2, '.', '');
			
			i = document.getElementById('quantity'+ id);
			increaseCart = i.options[i.selectedIndex].text;
	 		var cartNumber = document.getElementById('cartNumber').innerHTML;	
			var cart = parseFloat(cartNumber) + parseFloat(increaseCart);	
			document.getElementById('cartNumber').innerHTML = cart;
   }