请教下window的这个属性--ONREQUEST
eceg 2009-06-15 02:18:14 function checkONREQUEST() {
if (window.opener == null) {
if (window.top.ONREQUEST == 1) {
alert(“已经单击过了”);
} else {
window.top.ONREQUEST = 1;
}
} else {
if (window.opener.top.ONREQUEST == 1) {
alert(“已经单击过了”);
} else {
window.opener.top.ONREQUEST = 1;
}
}
}
上面的这个是在页面 onload和unonload时调用.
想请问下window.top.ONREQUEST是什么?
什么时候ONREQUEST值会发生改变