function isMatch(str1,str2)
{
	var index = str1.indexOf(str2);
	if(index==-1) return false;
	return true;
}

function ResumeError() {
	return true;
}
window.onerror = ResumeError;

function $(id) {
	return document.getElementById(id);
}


// 相对尺寸
function GetOffsetTop (el, p) {
	var _t = el.offsetTop;
	var _p = el.offsetParent;

	while (_p) {
		if (_p == p) break;
		_t += _p.offsetTop;
		_p = _p.offsetParent;
	}

	return _t;
}
function GetOffsetLeft (el, p) {
	var _l = el.offsetLeft;
	var _p = el.offsetParent;

	while (_p) {
		if (_p == p) break;
		_l += _p.offsetLeft;
		_p = _p.offsetParent;
	}

	return _l;
}


//导航菜单
function showMenu (baseID, divID) {
	baseID = $(baseID);
	divID  = $(divID);

	//var l = GetOffsetLeft(baseID);
	//var t = GetOffsetTop(baseID);

	//divID.style.left = l + 'px';
	//divID.style.top = t + baseID.offsetHeight + 'px';
	if (showMenu.timer) clearTimeout(showMenu.timer);
	hideCur();
	divID.style.display = 'block';
	showMenu.cur = divID;

	if (! divID.isCreate) {
		divID.isCreate = true;
		//divID.timer = 0;
		divID.onmouseover = function () {
			if (showMenu.timer) clearTimeout(showMenu.timer);
			hideCur();
			divID.style.display = 'block';
		};

		function hide () {
			showMenu.timer = setTimeout(function () {divID.style.display = 'none';}, 1000);
		}

		divID.onmouseout = hide;
		baseID.onmouseout = hide;
	}
	function hideCur () {
		showMenu.cur && (showMenu.cur.style.display = 'none');
	}
}


//滑动门
function doClick_down(o){
	o.className="current";
	var j;
	var id;
	var e;
	for(var i=1;i<=4;i++){
		id ="zhenai"+i;
		j = document.getElementById(id);
		e = document.getElementById("d_con"+i);
		if(id != o.id){
			j.className="";
			e.style.display = "none";
		}else{
			e.style.display = "block";
		}
	}
}


//改变文字大小
function doZoom(size){
	document.getElementById('textbody').style.fontSize=size+'px'
}