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PO"cannot call method 'appendchild' to null"...error...why?
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copied!<p>here is my code...</p> <pre><code> var main = document.getElementById("section"); //gets node for main window var para1 = document.createElement("p"); //creates paragraph node var para2 = document.createElement("p"); // creates another paragraph node var req = request.responseXML; //gets xml data var nodeList = req.getElementsByTagName("line"); //gets all nodes with line as tag var nodeArray = new Array(); //holds only lines that are part of code para1.appendChild(document.createTextNode(req.getElementsByTagName("description")[0].childNodes[0].nodeValue)); //creates text node to put inside paragraph node para2.appendChild(document.createElement("table")); //creates a table tag and puts inside para2 for(var i=0; i<nodeList.length; i++) { if(nodeList[i].getAttribute("st") == "no") { document.getElementById("table").appendChild(document.createElement("tr")); //creates a table row for each line participating in quiz //document.getElementById("tr").appendChild(document.createElement("td")); //creates table data for the row (only one)dd //nodeArray.push(nodeList[i].childNodes[0].nodeValue); //adds to array the lines participating in quiz //document.getElementById("td").appendChild(createTextNode(nodeList[i],childNodes[0].nodeValue)); } } main.appendChild(para1); //add paragraph to the main div main.appendChild(para2); //adds 2nd paragraph to main div } </code></pre> <p>So I have commented everything else out in the if statement but I'm still getting this error...if I already created the table tag earlier, why is it considered null??</p>

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