function openwindows(){
var obj = new Object();

//打開模態(tài)子窗體,并獲取返回值
var retval = window.showModalDialog("ordervideo.jsp?rderIds="+"0010,0020,0030",obj,"dialogWidth=500px;dialogHeight=500px");

//for chrome
if(retval == undefined) {
retval = window.returnValue;
}
alert(retval);
}

function onload(){

//for chrome
if(window.opener != undefined) { //window.opener的值在谷歌瀏覽器下面不為空，在IE/火狐下面是未定義，由此判斷是否是谷歌瀏覽器
window.opener.returnValue = flag; //谷歌瀏覽器下給返回值賦值的方法window.opener.close(); //這里必須關(guān)閉一次，否則執(zhí)行下面的window.close()無法關(guān)閉彈出窗口，因?yàn)楣雀铻g覽器下彈出窗口是個(gè)新的window
}

else {
window.returnValue=flag; //這種賦值方法兼容IE/火狐，但不支持谷歌瀏覽器
}
window.close();

}