if (http_request.status == 200) {
		// content =  '"102232232", "<test>", "500"' (1 string)
      var content = http_request.responseText;
	  alert(content);
	    // this gives me: "102232232", "<test>", "500"
      var arrContent = content.split(",");
	  if(arrContent[1] != undefined) { document.getElementById("productName[" + lineNumber + "]").innerHTML = arrContent[1]; }
	  else { document.getElementById("productName[" + lineNumber + "]").innerHTML = "Ukjent."; }
	  if(arrContent[1] != undefined) { document.getElementById("productPrice[" + lineNumber + "]").innerHTML = arrContent[2]; }
	  else { document.getElementById("productPrice[" + lineNumber + "]").innerHTML = "Ukjent."; }
	  if(arrContent[1] != undefined) { document.getElementById("totalSum[" + lineNumber + "]").innerHTML = arrContent[2]; }
	  else { document.getElementById("totalSum[" + lineNumber + "]").innerHTML = "Ukjent."; }
	  
	  // now: document.getElementById("productName[" + lineNumber + "]; looks like this in my browser:
      // <test>
    }