// JavaScript Document

function check_valuable_commodity(commodity)
{
    xmlHttp=GetXmlHttpObject()
  var url="check_commodity.php";
    
  url=url+"?commodity="+commodity;
  xmlHttp.onreadystatechange=shomessage_value;
  
  xmlHttp.open("GET",url,true);
   xmlHttp.send(null); 
 
}

function shomessage_value()
 {

    if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
      {
		 
		  if(xmlHttp.responseText==1)
		  	{
				window.open('valuable_commodity.php');
			}
			else
			{
				}
		 
			
	}
  }

function GetXmlHttpObject()
    { 
      var objXMLHttp=null
        if (window.XMLHttpRequest)
         {
          objXMLHttp=new XMLHttpRequest()
       }
     else if (window.ActiveXObject)
     {
       objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
       }
         return objXMLHttp
    }