//// navi //////////////////////////////////////////////////////////////////////////

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

////cookie設定//////////////////////////////////////////////////////////////////////////////
function getCookie(){
	//text
	zoom = "";
	siteName = "kanagawaText=";
	tmpCookie = document.cookie + ";";
	start = tmpCookie.indexOf(siteName);
	if (start != -1)
	{
		end = tmpCookie.indexOf(";", start);
		zoom = tmpCookie.substring(start + siteName.length, end);
		document.body.style.fontSize = zoom;
	} else {
		//document.body.style.fontSize = "100%";
	}
}
////文字拡大・縮小//////////////////////////////////////////////////////////////////////////////
function setSize(s){
	siteName = "kanagawaText=";
	exp = new Date();
	exp.setTime(exp.getTime() + 31536000000);
	document.cookie = siteName + s + "; path=/; expires=" + exp.toGMTString();
}
//
function textSizeUp(){
	var currentSize = "90%";
	var selectSize = "";
	currentSize = document.body.style.fontSize;
	if(!currentSize) currentSize = "90%";
	if ( currentSize=="90%"){
		selectSize = "110%";
	} else if(currentSize=="110%") {
		selectSize = "130%";
	} else if(currentSize=="130%") {
		alert("これ以上文字を拡大することはできません。");
		selectSize = "130%";
	} else {
		selectSize = "90%";
	}

	document.getElementsByTagName("body")[0].style.fontSize = selectSize;

	setSize(selectSize);
}
//
function textSizeDown(){
	var currentSize = "90%";
	var selectSize = "";
	currentSize = document.body.style.fontSize;
	if(!currentSize) currentSize = "90%";
	if ( currentSize=="130%"){
		selectSize = "110%";
	} else if(currentSize=="110%") {
		selectSize = "90%";
	} else if(currentSize=="90%") {
		selectSize = "80%";
	} else if(currentSize=="80%") {
		alert("これ以上文字を縮小することはできません。");
		selectSize = "80%";
	} else {
		selectSize = "90%";
	}

	document.getElementsByTagName("body")[0].style.fontSize = selectSize;
	setSize(selectSize);
}
//

//// onload //////////////////////////////////////////////////////////////////////////

window.onload = function() {
		getCookie();
}