function openWindow(){
if(confirm("是否打开")){
var url=prompt("请输入网址","http：//www.imooc.com");
if(url!=null){window.open(url,"_black","width=400,height=500,menubar=no,toolbar=no");};
};
function openWindow(){
if(confirm('是否打开')){
var newW = prompt('请输入网页地址','http://www.imooc.com');
if(newW){
window.open('newW','_blank','width=400,height=500,menubar=no,toolbar=no');
}
function openWindow(){
var mylinks
mylinks=prompt("input website", "http://www.baidu.com");
if (mylinks!=null)
{window.open(mylinks,'width=400','heigh=500','menuber=no','toolbar=no'); }
else
{window.close();} }
