var http_request = false;
var hideformaftersubmit = false;
   function makeRequest(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('Cannot create XMLHTTP instance');
         return false;
      }
      http_request.onreadystatechange = alertContents;
      http_request.open('GET', url + parameters, true);
      http_request.send(null);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('form_msg').innerHTML = result;   
			if (result == 'Your comment has been submitted. Thank you.') {
				getData(document.comment_form.video.value);
				document.comment_form.name.value = '';
				document.comment_form.email.value = '';
				document.comment_form.comment.value = '';
				if (hideformaftersubmit == 1) {
					document.getElementById('comment_form_show').style.display='none';
					document.getElementById('comment_form_title').innerHTML='Click here to comment on this video';
				}
			}
			document.comment_form.submit_comment.value='Submit comment';
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   function get(obj,hideaftersubmit) {
	  document.comment_form.submit_comment.value='Submitting...';
	  hideformaftersubmit = hideaftersubmit;
      var getstr = "?do=comment&";
      for (i=0; i<obj.childNodes.length; i++) {
         if (obj.childNodes[i].tagName == "INPUT") {
            if (obj.childNodes[i].type == "text") {
               getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
            }
			if (obj.childNodes[i].type == "hidden") {
               getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
            }
            if (obj.childNodes[i].type == "checkbox") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               } else {
                  getstr += obj.childNodes[i].name + "=&";
               }
            }
            if (obj.childNodes[i].type == "radio") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               }
            }
         }   
         if (obj.childNodes[i].tagName == "SELECT") {
            var sel = obj.childNodes[i];
            getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
         }
         if (obj.childNodes[i].tagName == "TEXTAREA") {
            getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value.replace(/\n/gi,'<br />') + "&";
         }

      }
      makeRequest('/scripts/comment_submit.php', getstr, hideaftersubmit);
   }
   
   
   
   
   
   
var getv=null;

function getData(value){

	if (window.XMLHttpRequest) {
		getv= new XMLHttpRequest();
		if (getv.overrideMimeType){
			getv.overrideMimeType("text/xml");
		}
	}
	else if (window.ActiveXObject) {
		try {
		getv = new ActiveXObject("Msxml2.xmlHttp");
		getv.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		}
		catch(e) {
			try {
			getv= new ActiveXObject("Microsoft.xmlHttp");
			}
			catch(e) {}
		}
	}
	
	ret=null;
	getv.onreadystatechange = function() {
		if (getv.readyState == 4) {
			ret=getv.responseText;
			document.getElementById('comments').innerHTML=ret;
			getv=null;
		}
	};
	
	getv.open("POST", '/scripts/comments_display.php?video='+value);
	try{
		getv.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	}
	catch(e){}
	
	getv.send("");
	return ret;
	return 0;
}


function toggleCommentForm() {
	if (document.getElementById('comment_form_show').style.display=='') {
		document.getElementById('comment_form_show').style.display='none';
		document.getElementById('comment_form_title').innerHTML='Click here to comment on this video';
	}
	else {
		document.getElementById('comment_form_show').style.display='';
		document.getElementById('comment_form_title').innerHTML='Comment on this video';
	}
}