function uploadAndGetResult(randnum)
{
	var xhr = (typeof(XMLHttpRequest) != "undefined") ? new XMLHttpRequest() : new ActiveXObject("Msxml2.XMLHTTP"); 
   
    try {  xhr = new ActiveXObject('Msxml2.XMLHTTP');   }
    catch (e) 
    {
        try {   xhr = new ActiveXObject('Microsoft.XMLHTTP');    }
        catch (e2) 
        {
          try {  xhr = new XMLHttpRequest();     }
          catch (e3) {  xhr = false;   }
        }
     }
  
    var url;
	
	url = "bocr_script.php";
		 
	var params = "number="+randnum;
	xhr.open("POST", url, true);
	
	//Send the proper header information along with the request
	xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=UTF-8");
	xhr.setRequestHeader("Content-length", params.length);
	xhr.setRequestHeader("Connection", "close");
	
	xhr.onreadystatechange  = function()
    { 		
         if(xhr.readyState  == 4)
         {
              if(xhr.status  == 200) {				 
				 	document.getElementById('result').innerHTML="<p style=\"border:solid 2px #000000\">"+xhr.responseText+"</p>"; 			
				  }
              else{
				 document.getElementById('result').innerHTML="Error code " + xhr.status;
				 }
         }
		 else{
			document.getElementById('result').innerHTML="wait while uploading image file......<br/><br/><img src=\"img/loading.gif\">";
		 }			 
    }; 
	
	xhr.send(params);	
}