function popUpWin(_1,_2,_3,_4,_5){
var _6=(screen.availWidth-_3)/2;
var _7=(screen.availHeight-_4)/2;
var _8;
_5+="width="+_3+",height="+_4+",left="+_6+",top="+_7+",resizeable=1,scrollbars=1";
_8=window.open(_1,_2,_5);
_8.focus();
return _8;
}