function effect(id) { 
	if(id == 1)
	{
	 var element = document.getElementById("tag1");   
     element.style.display = 'block';
     var element = document.getElementById("tag2");   
     element.style.display = 'none';
	 var element = document.getElementById("tag3");   
     element.style.display = 'none';
	 var element = document.getElementById("tag4");   
     element.style.display = 'none';
	 var element = document.getElementById("tag5");   
     element.style.display = 'none';
 }   
 	if(id == 2)
	{
	 var element = document.getElementById("tag1");   
     element.style.display = 'none';
     var element = document.getElementById("tag2");   
     element.style.display = 'block';
	 var element = document.getElementById("tag3");   
     element.style.display = 'none';
	 var element = document.getElementById("tag4");   
     element.style.display = 'none';
	 var element = document.getElementById("tag5");   
     element.style.display = 'none';
 }   
 	if(id == 3)
	{
	 var element = document.getElementById("tag1");   
     element.style.display = 'none';
     var element = document.getElementById("tag2");   
     element.style.display = 'none';
	 var element = document.getElementById("tag3");   
     element.style.display = 'block';
	 var element = document.getElementById("tag4");   
     element.style.display = 'none';
	 var element = document.getElementById("tag5");   
     element.style.display = 'none';
 }   
 	if(id == 4)
	{
	 var element = document.getElementById("tag1");   
     element.style.display = 'none';
     var element = document.getElementById("tag2");   
     element.style.display = 'none';
	 var element = document.getElementById("tag3");   
     element.style.display = 'none';
	 var element = document.getElementById("tag4");   
     element.style.display = 'block';
	 var element = document.getElementById("tag5");   
     element.style.display = 'none';
 }   
 	if(id == 5)
	{
	 var element = document.getElementById("tag1");   
     element.style.display = 'none';
     var element = document.getElementById("tag2");   
     element.style.display = 'none';
	 var element = document.getElementById("tag3");   
     element.style.display = 'none';
	 var element = document.getElementById("tag4");   
     element.style.display = 'none';
	 var element = document.getElementById("tag5");   
     element.style.display = 'block';
 }   
}

function menu(id) { 
	if(id == 1)
	{
	 var element = document.getElementById("menu1");   
     element.style.display = 'block';
     var element = document.getElementById("menu2");   
     element.style.display = "none";
	 var element = document.getElementById("menu3");   
     element.style.display = 'none';
	 var element = document.getElementById("menu4");   
     element.style.display = 'none';
 }   
 	if(id == 2)
	{
	 var element = document.getElementById("menu1");   
     element.style.display = 'none';
     var element = document.getElementById("menu2");   
     element.style.display = "block";
	 var element = document.getElementById("menu3");   
     element.style.display = 'none';
	 var element = document.getElementById("menu4");   
     element.style.display = 'none';
 }   
 	if(id == 3)
	{
	 var element = document.getElementById("menu1");   
     element.style.display = 'none';
     var element = document.getElementById("menu2");   
     element.style.display = 'none';
	 var element = document.getElementById("menu3");   
     element.style.display = "block";
	 var element = document.getElementById("menu4");   
     element.style.display = 'none';
 }   
 	if(id == 4)
	{
	 var element = document.getElementById("menu1");   
     element.style.display = 'none';
     var element = document.getElementById("menu2");   
     element.style.display = "none";
	 var element = document.getElementById("menu3");   
     element.style.display = 'none';
	 var element = document.getElementById("menu4");   
     element.style.display = 'block';
 }   
}

/*======================================================*/
/* 関数名：regTwitter                                   */
/* 引　数：url、this                                    */
/* 戻り値：なし                                         */
/* 処　理：ツィッターへの遷移                           */
/*======================================================*/
function regTwitter(url, self)
{
    var EncVal = encodeURIComponent(document.getElementById('productName').value + ' ' + url);
	//ツィッターへ
	self.href = 'http://twitter.com/home?status=' + EncVal;
}

window.onload=function(){
var tags=document.getElementsByTagName("img");
for(var i=0;i<tags.length;i++){
var cn=tags[i].className;
if(cn!=""){
var img=document.getElementById(cn);
if(img){
tags[i].img=img;
hideimg=tags[i].nextSibling;
while(hideimg){
if(hideimg.className=="hide") break;
hideimg=hideimg.nextSibling;
}
tags[i].hideimg=hideimg;
tags[i].onmouseover=function(){
this.img.src=this.hideimg.src;
this.img.parentNode.href=this.parentNode.href;
};
}
}
}
}