function initRollovers() {
	if (!document.getElementById) return
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');
	
	for (var i = 0; i < aImages.length; i++) {
		if (aImages[i].className == 'swap') {
			var src = aImages[i].getAttribute('src');
			var hsrc = src.replace('_off', '_on');
			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_on', '_off');
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}


var GuideSentence = 'キーワードを入力してください';
function ShowFormGuide(obj) {
	 if( obj.value == '' ) {
		obj.value = GuideSentence;
	}
}

 function HideFormGuide(obj) {
	if( obj.value == GuideSentence ) {
		obj.value='';
	}
}

function invisible(bpref,  id_max, selected) {
	 if (! document.getElementById) return;

	for (i = 1; i <= id_max; i++) {
		 if (! document.getElementById(bpref + i)) continue;
		 if (i == selected) {
			document.getElementById(bpref + i).style.display = "block";
			document.getElementById("img_btn"+selected).src = "shared/images/btn_gnav"+selected+"_over.gif";
		} else {
			document.getElementById(bpref + i).style.display = "none";
			document.getElementById("img_btn"+i).src = "shared/images/btn_gnav"+i+"_off.gif";
		}
	}


}


var imgdir = "/shop/shared/images/";
var gnavs = new Array();
var img_btns =new Array();
var invisibles = new Array();

function init(p) {
	for (i = 1; i < 5; i++) {
		gnavs[i] = document.getElementById("gnav" + i);
		gnavs[i].style.backgroundImage = "url(" + imgdir + "btn_gnav" + i + "_off.gif)";
	}
	document.getElementById("gnav" + p).innerHTML = '<img src="' + imgdir + 'btn_gnav' + p + '_over.gif">';
	if (p != 1) document.getElementById("invisible" + p).style.display = "block";
	
}
function showsub(a) {
	for (i = 1; i < 5; i++) {
		gnavs[i] = document.getElementById("gnav" + i);
		img_btns[i] = imgdir + "btn_gnav" + i + "_over.gif";
		gnavs[i].innerHTML = "";
	}
	for (i = 2; i < 5; i++) {
		invisibles[i] =document.getElementById("invisible" + i);
		invisibles[i].style.display  = "none";
	}
	invisibles[a].style.display = "block";
	gnavs[a].innerHTML = '<img src=' + img_btns[a] + ' />';
}

function swap(a) {
	document.getElementById("gnav" + a).style.backgroundImage = "url(" + imgdir + "btn_gnav" + a + "_on.gif)";
}

function restore(a) {
	document.getElementById("gnav" + a).style.backgroundImage = "url(" + imgdir + "btn_gnav" + a + "_off.gif)";
}

function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=150,height=150,screenX=150,screenY=150,top=150,left=150')
}
function popupImageWindow(url) {
  window.open(url,'popupImageWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=150,height=150,screenX=150,screenY=150,top=150,left=150')
}