function getNowDate(){

	var nowdate = new Date();
	var nowM = nowdate.getMonth() + 1;
	var backM = eval(nowM) -1;
	var nextM = eval(nowM) +1;
	var hidval = document.getElementById("iptMonth")
	
	hidval.value = "";
	hidval.value = nowM;
	//document.getElementById("now").innerHTML=nowM + "月";
	document.getElementById("defCal").innerHTML="<img src=\"http://www.prince-skyline.com/wp-content/themes/prince/images/top/" + nowM + ".jpg\" name=\"area1\">";

	if(eval(backM) >= 4){
		document.getElementById("back").innerHTML="<a href=\"javascript:changeMonth(" + backM + ")\"><<" + backM + "月</a>";
	}else{
		document.getElementById("back").innerHTML="営業無し";
	}
	if(eval(nextM) < 11){
		document.getElementById("next").innerHTML="<a href=\"javascript:changeMonth(" + nextM + ")\">" + nextM + "月>></a>";
	}else{
		document.getElementById("next").innerHTML="営業無し";
	}

}

function changeMonth(intMonth){
	document.getElementById("iptMonth").value = intMonth;
	backM = eval(intMonth) -1;
	nextM = eval(intMonth) +1;

	document.area1.src = "http://www.prince-skyline.com/wp-content/themes/prince/images/top/" + intMonth + ".jpg";
	//document.getElementById("now").innerHTML=intMonth + "月";
	
	if(eval(backM) >= 4){
		document.getElementById("back").innerHTML="<a href=\"javascript:changeMonth(" + backM + ")\"><<" + backM + "月</a>";
	}else{
		document.getElementById("back").innerHTML="";
	}
	if(eval(nextM) < 13){
		document.getElementById("next").innerHTML="<a href=\"javascript:changeMonth(" + nextM + ")\">" + nextM + "月>></a>";
	}else{
		document.getElementById("next").innerHTML="";
	}
}