String.prototype.trim = function(){return this.replace(/(^[ |　]*)|([ |　]*$)/g, "");}
String.prototype.clearHTML = function(){return this.replace(/<[^>]+>/g,"");}
function $(v) { return document.getElementById(v); }
//导航菜单
var isOverMainMenu = false;
var isOverSubMenu = false;
function showMenu(id) {
	var a = document.getElementById("mainmenu").getElementsByTagName("a");
	for(var i=0;i<a.length;i++) {
		a[i].onmouseover = function() {
			if(this.className!="active") this.className = "hover";
			showSubMenu(this.id);
			isOverMainMenu=true;
		}
		a[i].onmouseout = function() {
			if(this.className!="active") this.className = "";
			setTimeout("showSubMenu('"+id+"')", 1);
			isOverMainMenu=false;
		}
		if(a[i].id == id) {
			a[i].className = "active";
			showSubMenu(id);
		} else {
			a[i].className = "";
		}
	}
}
function showSubMenu(id) {
	var a = $("submenu");
	a.onmouseover = function() {
		isOverSubMenu=true;
	}
	a.onmouseout = function() {
		isOverSubMenu=false;
	}
	if(!isOverSubMenu && !isOverMainMenu) {
		var b = document.getElementById("submenu").getElementsByTagName("ul");
		for(var i=0;i<b.length;i++) {
			if(b[i].id == "submenu_"+id) {
				b[i].className = "active";
			} else {
				b[i].className = "";
			}
		}
	}
}

function resizeFont(obj, size){
	$(obj).style.fontSize = size + 'px';
}

function addFavorite(url, title) {
  window.external.AddFavorite(url, title);
}

function resizeImg(_oObj){
	/*var tMark = true;var iWidth = 0;var sOuterHtml;var aNode = _oObj.attributes;
	for(var i = 0; i < aNode.length; i++){if(aNode[i].specified){if(aNode[i].name == "width" || aNode[i].name == "height"){tMark = false;}}}
	if(tMark){if(_iWidth){setTimeout("resize()",500);}}*/
	_iWidth = 600;
	setTimeout("resize()",500);
	this.resize = function(){if(_oObj.width > _iWidth){_oObj.width = _iWidth;}}
}

function swap(a, b) {
    $(b).style.display = "none";
    $(a).style.display = "block";
}