function openAjax(){try{return new XMLHttpRequest();}catch(trymicrosoft){try{return new ActiveXObject("Msxml2.XMLHTTP");}catch(othermicrosoft){try{return new ActiveXObject("Microsoft.XMLHTTP");}catch(failed){return false;}}}}
function rateFile(file,rating){document.getElementById('submitButton').innerHTML='<img src="'+img_dir+'/progress.gif" alt="Progress" />';req=openAjax();var url="ajax.php?act=rate&file="+file+"&rating="+rating;req.open("get",url,true);req.onreadystatechange=handleRate;req.send('null');}
function handleRate(){if(req.readyState==4){document.getElementById('fileRating').innerHTML=req.responseText;}}
function postComment(fileID){var commentText;var tMCEused;if(typeof(tinyMCE)!="undefined"){tinyMCE.execInstanceCommand("comment","mceFocus");commentText=tinyMCE.getContent();tMCEused=1;}else{commentText=document.getElementById("comment").value;tMCEused=0;}
if(document.getElementById("subject").value==""||commentText==""){alert(comment_emptyfield);return false;}
document.getElementById('status').innerHTML='<img src="'+img_dir+'/progress.gif" alt="Progress" /> '+comment_wait;req=openAjax();var url="ajax.php?act=postcomment&file="+fileID;req.open("post",url,true);req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");req.onreadystatechange=handlePostComment;req.send("subject="+escape(document.getElementById("subject").value)+"&comment="+escape(commentText)+"&tMCEused="+tMCEused);}
function handlePostComment(){if(req.readyState==4){document.getElementById("subject").value="";document.getElementById("comment").value="";document.getElementById('commentTables').innerHTML=document.getElementById('commentTables').innerHTML+ req.responseText;document.getElementById('status').innerHTML='';if(typeof(tinyMCE)!="undefined"){tinyMCE.setContent('');}}}
function deleteComment(commentID){if(confirm(delete_comment_conf)){req=openAjax();var url='ajax.php?act=deletecomment&comment='+commentID;req.open("get",url,true);req.onreadystatechange=handleDeleteComment;req.send('null');}}
function handleDeleteComment(){if(req.readyState==4){document.getElementById("comment"+req.responseText).innerHTML="";}}
var oldDivContent;var editCommentID=0;function editComment(commentID){var tMCEused;if(editCommentID>0){cancelEdit(editCommentID);}
if(typeof(tinyMCE)!="undefined"){tMCEused=1;}else{tMCEused=0;}
req=openAjax();var url='ajax.php?act=editcomment&comment='+commentID+'&tMCEused='+tMCEused;req.open("get",url,true);req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");req.onreadystatechange=handleEditComment;req.send('null');editCommentID=commentID;}
function handleEditComment(){if(req.readyState==4){oldDivContent=document.getElementById("comment"+editCommentID).innerHTML;document.getElementById("comment"+editCommentID).innerHTML=req.responseText;if(typeof(tinyMCE)!="undefined"){tinyMCE.execCommand('mceAddControl',false,"commenttext"+editCommentID);}}}
function cancelEdit(){if(typeof(tinyMCE)!="undefined"){tinyMCE.execCommand('mceRemoveControl',true,"commenttext"+editCommentID);}
document.getElementById("comment"+editCommentID).innerHTML=oldDivContent;editCommentID=0;}
function saveComment(){var commentText;var tMCEused;if(typeof(tinyMCE)!="undefined"){tinyMCE.execInstanceCommand("commenttext"+editCommentID,"mceFocus");commentText=tinyMCE.getContent();tMCEused=1;}else{commentText=document.getElementById("commenttext"+editCommentID).value;tMCEused=0;}
if(document.getElementById("subject"+editCommentID).value==""||commentText==""){alert(comment_emptyfield);return false;}
req=openAjax();var url="ajax.php?act=savecomment&id="+editCommentID;req.open("post",url,true);req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");req.onreadystatechange=handleSaveComment;req.send("&subject="+escape(document.getElementById("subject"+editCommentID).value)+"&comment="+escape(commentText)+"&tMCEused="+tMCEused);}
function handleSaveComment(){if(req.readyState==4){if(typeof(tinyMCE)!="undefined"){tinyMCE.execCommand('mceRemoveControl',true,"commenttext"+editCommentID);}
document.getElementById('comment'+editCommentID).innerHTML=req.responseText;editCommentID=0;}}