弹出窗口函数 function openwindow(url,name,iWidth,iHeight){ var url; //转向网页的地址; var name; //网页名称,可为空; var iWidth; //弹出窗口的宽度; var iHeight; //弹出窗口的高度; //window.screen.height获得屏幕的高,window.screen.width获得屏幕的宽 var iTop = (window.screen.height-30-iHeight)/2; //获得窗