document.write('<iframe id=CalFrame name=CalFrame frameborder=0 src="/calendar/calendar.html" style=display:none;position:absolute;z-index:100></iframe>');
document.onclick=hideCalendar;

function showCalendar(sImg,bOpenBound,sFld1,sFld2,sCallback)
{
	var fld1,fld2;
	var cf=getObject("CalFrame");
	var wcf=window.frames.CalFrame;
	var oImg=getObject(sImg);
	if(!oImg){alert("控制对象不存在！");return;}
	if(!sFld1){alert("输入控件未指定！");return;}
	fld1=getObject(sFld1);
	if(!fld1){alert("输入控件不存在！");return;}
	if(fld1.tagName!="INPUT"||fld1.type!="text"){alert("输入控件类型错误！");return;}
	if(sFld2)
	{
		fld2=getObject(sFld2);
		if(!fld2){alert("参考控件不存在！");return;}
		if(fld2.tagName!="INPUT"||fld2.type!="text"){alert("参考控件类型错误！");return;}
	}
	if(!wcf.bCalLoaded){alert("日历未成功装载！请刷新页面！");return;}
	if(cf.style.display=="block"){cf.style.display="none";return;}
	
	var eT=0,eL=0,p=oImg;
	if(document.body.scrollTop!=0 || (document.documentElement.scrollTop==0 && document.documentElement.clientHeight==0))
	{
		var sT=document.body.scrollTop,sL=document.body.scrollLeft;
		var eH=oImg.height,eW=oImg.width;
		while(p&&p.tagName!="BODY"){eT+=p.offsetTop;eL+=p.offsetLeft;p=p.offsetParent;}
		cf.style.top=((document.body.clientHeight-(eT-sT)-eH>=cf.height)?eT+eH:eT-cf.height) + "px";
		cf.style.left=((document.body.clientWidth-(eL-sL)>=cf.width)?eL:eL+eW-cf.width) + "px";	
	}
	else
	{
		var sT=document.documentElement.scrollTop,sL=document.documentElement.scrollLeft;
		var eH=oImg.height,eW=oImg.width;
		while(p&&p.tagName!="BODY"){eT+=p.offsetTop;eL+=p.offsetLeft;p=p.offsetParent;}
		cf.style.top=((document.documentElement.clientHeight-(eT-sT)-eH>=cf.height)?eT+eH:eT-cf.height) + "px";
		cf.style.left=((document.documentElement.clientWidth-(eL-sL)>=cf.width)?eL:eL+eW-cf.width) + "px";	
	}	
	cf.style.display="block";
	
	wcf.openbound=bOpenBound;
	wcf.fld1=fld1;
	wcf.fld2=fld2;
	wcf.callback=sCallback;
	wcf.initCalendar();
}
function hideCalendar()
{	
	var cf=getObject("CalFrame");
	cf.style.display="none";
}
function setCheckInDate(d)
{
	getObject("hdate1").value=d;
	if(getObject("hdate2").value.length==0)
	{
		showCalendar('dimg2',false,'hdate2','hdate1');
	}
}
function setCheckInDate2(d){
	var _end = getObject("hdate2").value;
	if(_compare(d, _end)){
		getObject("hdate1").value=d;		
		getObject("start_date_").value = d;
		getObject("end_date_").value = _end;
		getObject("ChangeForm").submit();
	}
}
function setCheckOutDate2(d){
	var _start = getObject("hdate1").value;
	if(_compare(_start, d)){
		getObject("hdate2").value=d;		
		getObject("start_date_").value = _start;
		getObject("end_date_").value = d;
		getObject("ChangeForm").submit();
	}
}

function compare(){
	var _start = getObject("hdate1").value;
	var _end = getObject("hdate2").value;
    return _compare(_start, _end);
}
function _compare(_start, _end){
	if(_start.length==0 || _end.length==0){
    	return false;
    }
    if (stringToDate(_start)>=stringToDate(_end)){
		alert("离店日期应大于入住日期！"); 
		return false;
  	}  
	return true;
}