current = '';
station = false;
opa = 0.5;
var htmlHeight = 0;
var IE6 = isIE6();

$(function(){
	$("body").append("<div id='backgroundDiv'></div>");
	$("#backgroundDiv").css({
		'background-color' : '#1C0203', 
		"opacity" : opa,
		'position' : 'absolute', 
		'width' : '100%',
		'top' : 0,
		'left' : 0,
		'height' : 0,
		'z-index' : 101,
		'display':'none'
	});
});

function showBG(opacity) {
	if(opacity){
		opa = opacity;
	}
	var scrollHeight = document.documentElement.scrollHeight!=0?document.documentElement.scrollHeight:document.body.scrollHeight;
	var clientHeight = document.documentElement.clientHeight==0?document.body.clientHeight:document.documentElement.clientHeight;
	$("#backgroundDiv").css({
		"opacity" : opa,
		'height' : (scrollHeight<clientHeight?clientHeight:scrollHeight)
	}).fadeIn('normal');
	station = true;
}    
function showPanel(str, opacity){
	current	= str;
	obj = $('#'+str);
	showBG(opacity);
	
	var clientWidth = document.documentElement.clientWidth==0?document.body.clientWidth:document.documentElement.clientWidth;
	var clientHeight = document.documentElement.clientHeight==0?document.body.clientHeight:document.documentElement.clientHeight;
	var scrollTop = document.documentElement.scrollTop==0?document.body.scrollTop:document.documentElement.scrollTop;
	var divWidth = obj.width();
	var divHeight = obj.height();
	var divLeft = clientWidth / 2 - divWidth / 2;
	var divTop = clientHeight / 2 - divHeight / 2;
	if(divTop <= 0){
		divTop = 0;
	}
	obj.css({
		"z-index": 102,
		"top": divTop+scrollTop,
		"left": divLeft
	}).fadeIn('normal');
	
	if(IE6){
		controlScroll(1);
	}
}
function closePanel(obj, rbg) {
	try{
		if(obj==current) {
			current = '';
		}
		$('#'+obj).hide();
		if(rbg) {
			closeBG();
		}       
	}
	catch(e)
	{}
	if(IE6){
		controlScroll(0);
	}
}
function closeCurrentPanel(flag) {
	if(typeof(flag) == "undefined"){
		flag = false;
	}
	if(current){
		closePanel(current, flag);
	}
	if(IE6){
		controlScroll(0);
	}
}
function closeBG() {
	if(station==true){
		$("#backgroundDiv").fadeOut('fast');
		station =false;
	}
}
function init(){
	if(current!='' && station){
		showPanel(current);
	}
}
function controlScroll(se){
	if(se == 0){
		$("html").css('height', htmlHeight+'px');
		$("html").removeClass("html-overflow"); //启用滚动条
	}else{
		htmlHeight = $(document).height();
		htmlWidth = $(document).width();
		narrowHeight = $(window).height() + $(document).scrollTop(); 
		$("html").css('height', narrowHeight+'px');
		if(IE6){
			$("#backgroundDiv").css('height', narrowHeight+'px');
		}
		$("html").css('width', htmlWidth+'px');
		$("html").addClass("html-overflow");//禁止滚动条
	}
}
function isIE6(){
	if($.browser.msie && $.browser.version == '6.0'){
		return true;
	}else{
		return false;
	}
}


$(window).resize(init);
if(!IE6){
	$(window).scroll(init);
}

/**
 * 
 * @param {Object array} des
 * @param {Object function} callback
 */
function joinActivity(des, callback){
	
	Object.clone = function(sObj){   
        if(typeof sObj !== "object"){   
            return sObj;   
        }   
        var s = {};   
        if(sObj.constructor == Array){   
            s = [];   
        }   
        for(var i in sObj){   
            s[i] = Object.clone(sObj[i]);   
        } 
       
        return s;   
	}; 
	
	var sour = {
		'pcode': '',
		'prodid': '',
		'mobile': '',
		'tuanid': 0,
		'personid': '',
		'actid': '活动id',
		'subid': '子活动id',
		'description' : '活动描述',
		'notsendsms': 1,
		'maxattend': 300,
		'actname': '',
		'regcnt': 0,
		'cfmcnt': 0,
		'mobile_nid': '',
		't': Math.random()
	};
	var para = extend(sour, des);
	$.get('../../activity/join.php', para, function(data){
		callback(data);
	},'text');
	
	function extend(destination, source) {
		var destination2 = Object.clone(destination);
		var source2 = Object.clone(source);
		for (var property in source2) {
			destination2[property] = source2[property];
		}
		return destination2;
	}
}