function doClick(o){
	 o.className="nav_current";
	 var j;
	 var id;
	 for(var i=1;i<=11;i++){
	   id ="nav"+i;
	   j = document.getElementById(id);
	   if(id != o.id){
	   	 j.className="nav_link";
	   }
	   else
	   {
			j.className="down_link";
	   }  
	 }
	 }


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

function $(id) {
    return document.getElementById(id);
}
// Ïà¶Ô³ß´ç
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;
};
function GetOffsetRight (el, p) {
    var _l = el.offsetRight;
    var _p = el.offsetParent;

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

    return _l;
};
function showMenu(baseID, divID){
    baseIDx=baseID;
    baseID = $(baseIDx);
    divID  = $(divID);

    var t = GetOffsetTop(baseID);

    
    switch(baseIDx)
    {
    case 'nav1':
    case 'nav2':
    case 'nav3':
    case 'nav4':
    case 'nav6':
    case 'nav7':
    case 'nav8':
    case 'nav9':
    {
    var l = GetOffsetLeft(baseID);
    divID.style.left = l + 'px';
    }
    break;
    case 'nav5':
    case 'nav10':
    case 'nav11':
    {
    divIDR  = $('lanmu');
    var lL = GetOffsetLeft(divIDR);
    divID.style.right =lL+ 'px';
    }
    break;
    default:
    {
    var l = GetOffsetLeft(baseID);
    divID.style.left = l + 'px';
    }
    break;
    }
    divID.style.top = t+ 8+ 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');
	}
}
function doZoom(size){
	document.getElementById('textbody').style.fontSize=size+'px'
}