function bbimg(o){
	var zoom=parseInt(o.style.zoom, 10)||100;
	zoom+=event.wheelDelta/12;
	if (zoom>0)
		o.style.zoom=zoom+'%';
	return false;
}

function ChkGoPage(the,tCtrl){
	tChk = /^\d*$/;
	var obj = document.getElementById(tCtrl);
	if(!tChk.exec(obj.value)){
		alert("只能输入数字！");
		obj.focus();
		return false;
	}
}