if(document.images) {
 var constructionimgs = new Array();
 constructionimgs[0] = new Image();  constructionimgs[0].src = "/device/images/main_img00.jpg";
 constructionimgs[1] = new Image();  constructionimgs[1].src = "/device/images/main_img01.jpg";
 constructionimgs[2] = new Image();  constructionimgs[2].src = "/device/images/main_img02.jpg";
 constructionimgs[3] = new Image();  constructionimgs[3].src = "/device/images/main_img03.jpg";
 constructionimgs[4] = new Image();  constructionimgs[4].src = "/device/images/main_img04.jpg";
}

function change(id, imgname) {
 if(document.images) {
  if(constructionimgs[imgname]) {
    document.images[id].src = constructionimgs[imgname].src;
  }
  else {
    document.images[id].src = imgname;
  }
 }
}


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_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_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];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


// main img //

function showLAYER(layName){                               
	if(document.getElementById){         //e5,e6,n6,n7,m1,o6,o7,s1用
	  document.getElementById(layName).style.visibility='visible'
	  document.getElementById(layName).style.display='block'
	}else if(document.all){               //e4用
	  document.all(layName).style.visibility='visible'
	  document.all(layName).style.display='block'
	}else if(document.layers){            //n4用
	  document.layers[layName].visibility='show'
	  document.layers[layName].display='block'
	}
}
  
function hideLAYER(layName){
	if(document.getElementById){         //e5,e6,n6,n7,m1,o6,o7,s1用
	  document.getElementById(layName).style.visibility='hidden'
	  document.getElementById(layName).style.display='none'
	}else if(document.all){               //e4用
	  document.all(layName).style.visibility='hidden'
	  document.all(layName).style.display='none'
	}else if(document.layers){            //n4用
	  document.layers[layName].visibility='hide'
	  document.layers[layName].display='none'
	}
}