_window.getCurrentWindowId获取当前窗体ID
函数原型
/* 获取当前最前端窗体ID */
_window.getCurrentWindowId=function(){
var zzIndex=0;
var id=null;
for(var winid in _window.windows){
if( !_window.windows[winid].isHide && !_window.windows[winid].MIN ){
if(_window.windows[winid].zIndex>zzIndex){
id=winid;
zzIndex=_window.windows[winid].zIndex;
}
}
}
return id;
}