/*
*	author: misshjn
*	email: misshjn@163.com
*	homepage: www.happyshow.org
*	createDate: 2007-02-23
*/
function HS_DateAdd(interval,number,date){
	number = parseInt(number);
	if (typeof(date)=="string"){var date = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2])}
	if (typeof(date)=="object"){var date = date}
	switch(interval){
	case "y":return new Date(date.getFullYear()+number,date.getMonth(),date.getDate()); break;
	case "m":return new Date(date.getFullYear(),date.getMonth()+number,checkDate(date.getFullYear(),date.getMonth()+number,date.getDate())); break;
	case "d":return new Date(date.getFullYear(),date.getMonth(),date.getDate()+number); break;
	case "w":return new Date(date.getFullYear(),date.getMonth(),7*number+date.getDate()); break;
	}
}
function checkDate(year,month,date){
	var enddate = ["31","28","31","30","31","30","31","31","30","31","30","31"];
	var returnDate = "";
	if (year%4==0){enddate[1]="29"}
	if (date>enddate[month]){returnDate = enddate[month]}else{returnDate = date}
	return returnDate;
}

function WeekDay(date){
	var theDate;
	if (typeof(date)=="string"){theDate = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2]);}
	if (typeof(date)=="object"){theDate = date}
	return theDate.getDay();
}

function getHour(init)
{
    var re="";
    for(var i=1;i<=24;i++)
    {
        if(init==i)
        re+="<option value="+i+" selected='selected'>"+i+"</option>";
        else
        re+="<option value="+i+">"+i+"</option>";
    }
    return re;
}
function getSecond(init)
{
    var re="";
    for(var i=1;i<=60;i++)
    {
        if(init==i)
        re+="<option value="+i+" selected='selected'>"+i+"</option>";
        else
        re+="<option value="+i+">"+i+"</option>";
    }
    return re;
}

function HS_calender(){
	var lis = "";

	var now;
	if (typeof(arguments[0])=="string"){
	var d=arguments[0].split(" ");
		selectDate = d[0].split("-");
		var year = selectDate[0];
		var month = parseInt(selectDate[1])-1+"";
		var date = selectDate[2];
		var hour=d[1].split(':')[0];
		var second=d[1].split(':')[1];
		now = new Date(year,month,date);
		dateDay=d[0];
	}else if (typeof(arguments[0])=="object"){
		now = arguments[0];
		var date = now.getDate();
		var hour=now.getHours();
		var second=now.getMinutes();
		dateDay=now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+date;
	}
	var lastMonthEndDate = HS_DateAdd("d","-1",now.getFullYear()+"-"+now.getMonth()+"-01").getDate();
	var lastMonthDate = WeekDay(now.getFullYear()+"-"+now.getMonth()+"-01");
	var thisMonthLastDate = HS_DateAdd("d","-1",now.getFullYear()+"-"+(parseInt(now.getMonth())+1).toString()+"-01");
	var thisMonthEndDate = thisMonthLastDate.getDate();
	var thisMonthEndDay = thisMonthLastDate.getDay();

	for (i=0; i<lastMonthDate; i++){  // Last Month's Date
		lis = "<li class='lastMonthDate'>"+lastMonthEndDate+"</li>" + lis;
		lastMonthEndDate--;
	}

	for (i=1; i<=thisMonthEndDate; i++){ // Current Month's Date
		if(date == i){
			lis += "<li><a href=javascript:void(0) class='today' id='loop"+i+"' onclick='_selectThisDay(this)' title='"+now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+i+"'>"+i+"</a></li>";
		}else{
			lis += "<li><a href=javascript:void(0) id='loop"+i+"' onclick='_selectThisDay(this)' title='"+now.getFullYear()+"-"+(parseInt(now.getMonth())+1)+"-"+i+"'>"+i+"</a></li>";
		}
		
	}
	var j=1;
	for (i=thisMonthEndDay; i<6; i++){  // Next Month's Date
		lis += "<li class='nextMonthDate'>"+j+"</li>";
		j++;
	}


	var CalenderTitle = "<a href='javascript:void(0)' class='NextMonth' onclick=HS_calender(HS_DateAdd('m',1,'"+now.getFullYear()+"-"+now.getMonth()+"-"+now.getDate()+"'),this) title='Next Month'>&raquo;</a>";
	CalenderTitle += "<a href='javascript:void(0)' class='LastMonth' onclick=HS_calender(HS_DateAdd('m',-1,'"+now.getFullYear()+"-"+now.getMonth()+"-"+now.getDate()+"'),this) title='Previous Month'>&laquo;</a>";
	CalenderTitle += "<span class='selectThisYear'><a href='javascript:void(0)' onclick='CalenderselectYear(this)' title='Click here to select other year' >"+now.getFullYear()+"</a></span>年<span class='selectThisMonth'><a href='javascript:void(0)' onclick='CalenderselectMonth(this)' title='Click here to select other month'>"+(parseInt(now.getMonth())+1).toString()+"</a></span>月"; 

	var CalenderBox = "<div class='calender'><div class='calenderTitle'>"+CalenderTitle+
	"</div><div class='calenderBody'><ul class='day'><li>日</li><li>一</li><li>二</li><li>三</li><li>四</li><li>五</li><li>六</li></ul><ul class='date' id='thisMonthDate'>"+lis+
	"</ul></div><div class='calenderBottom'><a href='javascript:void(0)' class='closeCalender' onclick='closeCalender(this)'>&times;</a>";
	 CalenderBox +="时<select name='Hour' id='Hour'>"+getHour(hour)+"</select> 分<select name='Minute' id='Minute'>"+getSecond(second)+"</select><A onclick=goInput(this) href=\"javascript:void(0)\">确定</A></div></div>";
	
	return CalenderBox;
	
}
var dateDay;
function goInput(el)
{
	var boxObj = el.parentNode.parentNode.parentNode;
		boxObj.targetObj.value = dateDay+ " "+document.getElementById("Hour").value+":"+document.getElementById("Minute").value;
		boxObj.parentNode.removeChild(boxObj);
}

function _selectThisDay(d){

	document.getElementById("loop"+dateDay.split('-')[2]).className="";
	d.className="today";
	dateDay=d.title;
}
function closeCalender(d){
	var boxObj = d.parentNode.parentNode.parentNode;
		boxObj.parentNode.removeChild(boxObj);
}

function CalenderselectYear(obj){
		var opt = "";
		var thisYear = obj.innerHTML;
		for (i=1970; i<=2020; i++){
			if (i==thisYear){
				opt += "<option value="+i+" selected>"+i+"</option>";
			}else{
				opt += "<option value="+i+">"+i+"</option>";
			}
		}
		opt = "<select onblur='selectThisYear(this)' onchange='selectThisYear(this)' style='font-size:11px'>"+opt+"</select>";
		obj.parentNode.innerHTML = opt;
}

function selectThisYear(obj){
	HS_calender(obj.value+"-"+obj.parentNode.parentNode.getElementsByTagName("span")[1].getElementsByTagName("a")[0].innerHTML+"-1",obj.parentNode);
}

function CalenderselectMonth(obj){
		var opt = "";
		var thisMonth = obj.innerHTML;
		for (i=1; i<=12; i++){
			if (i==thisMonth){
				opt += "<option value="+i+" selected>"+i+"</option>";
			}else{
				opt += "<option value="+i+">"+i+"</option>";
			}
		}
		opt = "<select onblur='selectThisMonth(this)' onchange='selectThisMonth(this)' style='font-size:11px'>"+opt+"</select>";
		obj.parentNode.innerHTML = opt;
}
function selectThisMonth(obj){
	HS_calender(obj.parentNode.parentNode.getElementsByTagName("span")[0].getElementsByTagName("a")[0].innerHTML+"-"+obj.value+"-1",obj.parentNode);
}
function HS_setDate(inputObj){
	var calenderObj = document.createElement("span");
    if(document.getElementById("Calender")!=null)return;
	initTime=(inputObj.value!='') ? inputObj.value : new Date();
	calenderObj.innerHTML = HS_calender(initTime);
	calenderObj.style.position = "absolute";
	calenderObj.id="Calender";
	calenderObj.targetObj = inputObj;
	inputObj.parentNode.insertBefore(calenderObj,inputObj.nextSibling);
	
}