完美的在线教育系统

				/**
				 * Functions for the image listing, used by images.php only	
				 * @author $Author: Wei Zhuo $
				 * @version $Id: images.js 26 2004-03-31 02:35:21Z Wei Zhuo $
				 * @package ImageManager
				 */
				
					function i18n(str) {
						if(I18N)
						  return (I18N[str] || str);
						else
							return str;
					};
				
					function changeDir(newDir) 
					{
						showMessage('Loading');
						location.href = "images.php?dir="+newDir;
					}
				
				
					function newFolder(dir, newDir) 
					{
						location.href = "images.php?dir="+dir+"&newDir="+newDir;
					}
				
					//update the dir list in the parent window.
					function updateDir(newDir)
					{
						var selection = window.top.document.getElementById('dirPath');
						if(selection)
						{
							for(var i = 0; i < selection.length; i++)
							{
								var thisDir = selection.options[i].text;
								if(thisDir == newDir)
								{
									selection.selectedIndex = i;
									showMessage('Loading');
									break;
								}
							}		
						}
					}
				
					function selectImage(filename, alt, width, height) 
					{
						var topDoc = window.top.document;
						
						var obj = topDoc.getElementById('f_file');  obj.value = filename;
						var obj = topDoc.getElementById('f_url');  obj.value = filename;
						var obj = topDoc.getElementById('f_width');  obj.value = width;
						var obj = topDoc.getElementById('f_width'); obj.value = width;
						var obj = topDoc.getElementById('f_height'); obj.value = height;
						var obj = topDoc.getElementById('f_alt'); obj.value = alt;
						var obj = topDoc.getElementById('orginal_width'); obj.value = width;
						var obj = topDoc.getElementById('orginal_height'); obj.value = height;		
					}
				
					function showMessage(newMessage) 
					{
						var topDoc = window.top.document;
				
						var message = topDoc.getElementById('message');
						var messages = topDoc.getElementById('messages');
						if(message && messages)
						{
							if(message.firstChild)
								message.removeChild(message.firstChild);
				
							message.appendChild(topDoc.createTextNode(i18n(newMessage)));
							
							messages.style.display = "block";
						}
					}
				
					function addEvent(obj, evType, fn)
					{ 
						if (obj.addEventListener) { obj.addEventListener(evType, fn, true); return true; } 
						else if (obj.attachEvent) {  var r = obj.attachEvent("on"+evType, fn);  return r;  } 
						else {  return false; } 
					} 
				
					function confirmDeleteFile(file) 
					{
						if(confirm(i18n("Delete file?")))
							return true;
					
						return false;		
					}
				
					function confirmDeleteDir(dir, count) 
					{
						if(count > 0)
						{
							alert(i18n("Please delete all files/folders inside the folder you wish to delete first."));
							return;
						}
				
						if(confirm(i18n("Delete folder?"))) 
							return true;
				
						return false;
					}
				
					addEvent(window, 'load', init);