这是一些常用的JavaScript的特效的源码和教程

				
				
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				var popwindow;           //弹出窗口的ID
				var popwindowwidth=300;  // 弹出窗体的宽度
				var popwindowheight=300  // 弹出窗体的长度
				var popwindowtop=20 ;     // 窗体距离屏幕顶端的距离
				var popwindowURL="实用计算器.htm"; // 弹出窗体的名称
				var waitingtime=4;  // 窗体的停留时间
				// 配置弹出窗口的速度
				var pause=20;
				var step=40;
				var popwindowleft=-popwindowwidth-50;
				var marginright;
				var pagecenter;
				var timer;
				waitingtime= waitingtime*1000;
				//显示窗口
				function showWindow() 
				{
				popwindow = window.open(popwindowURL, "popwindow", "toolbar=no,width="+popwindowwidth+",height="+popwindowheight+",top="+popwindowtop+",left="+(popwindowwidth)+"");
				marginright = screen.width+50;
				pagecenter=Math.floor(marginright/2)-Math.floor(popwindowwidth/2);
				movewindow();
				}
				//移动窗口
				function movewindow()
				 {
				if (popwindowleft				popwindow.moveTo(popwindowleft,popwindowtop);
				popwindowleft+=step;
				timer= setTimeout("movewindow()",pause);
				}
				else {
				clearTimeout(timer);
				timer= setTimeout("movewindow2()",waitingtime);
				}
				}
				//移动窗口
				function movewindow2()
				 {
				if (popwindowleft				popwindow.moveTo(popwindowleft,popwindowtop);
				popwindowleft+=step;
				timer= setTimeout("movewindow2()",pause);
				}
				else {
				clearTimeout(timer);
				popwindow.close();}
				}