// JavaScript Document


/* smart Rollover
---------------------------------------------------------------------- */

function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}

if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}


// cross fade

new function(){
  function setRollOver2(){
    if(!document.images){return;}
    var imgs = document.images;
    var insert = [];
    for(var i=0;i<imgs.length;i++){
      var splitname = imgs[i].src.split('_off.');
      if((splitname[1])&&(imgs[i].parentNode.tagName=='A')){
        var rolloverImg = document.createElement('img');
        rolloverImg.src = splitname[0]+'_on.'+splitname[1];
        var alpha = 0;
        rolloverImg.currentAlpha = alpha;
        rolloverImg.style.opacity = alpha/100;
        rolloverImg.style.filter = 'alpha(opacity='+alpha+')';
        rolloverImg.style.position = 'absolute';


        addEvent(rolloverImg,'mouseover',function(){setFader(this,100);});
        addEvent(rolloverImg,'mouseout',function(){setFader(this,0);});

        insert[insert.length] = {position:imgs[i],element:rolloverImg};
      }
    }
    for(var i=0;i<insert.length;i++){
      var parent = insert[i].position.parentNode;
      parent.insertBefore(insert[i].element,insert[i].position);
    }
  }


  function setFader(targetObj,targetAlpha){
    targetObj.targetAlpha = targetAlpha;
    if(targetObj.currentAlpha==undefined){
      targetObj.currentAlpha = 100;
    }
    if(targetObj.currentAlpha==targetObj.targetAlpha){
      return;
    }
    if(!targetObj.fading){
      if(!targetObj.fader){
        targetObj.fader = fader;
      }
      targetObj.fading = true;
      targetObj.fader();
    }
  }

  function fader(){
    this.currentAlpha += (this.targetAlpha - this.currentAlpha)*0.2;
    if(Math.abs(this.currentAlpha-this.targetAlpha)<1){
      this.currentAlpha = this.targetAlpha;
      this.fading = false;
    }
    var alpha = parseInt(this.currentAlpha);
    this.style.opacity = alpha/100;
    this.style.filter = 'alpha(opacity='+alpha+')';
    if(this.fading){
      var scope = this;
      setTimeout(function(){fader.apply(scope)},30);
    }
  }

  function addEvent(eventTarget, eventName, func){
    if(eventTarget.addEventListener){
      eventTarget.addEventListener(eventName, func, false);
    }else if(window.attachEvent){
      // IE
      eventTarget.attachEvent('on'+eventName, function(){func.apply(eventTarget);});
    }
  }

  addEvent(window,'load',setRollOver2);

}



/* twitter
---------------------------------------------------------------------- */

function twitterCallback2(twitters) {
  var statusHTML = [];
  for (var i=0; i<twitters.length; i++){
    var username = twitters[i].user.screen_name;
    var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
      return '<a href="'+url+'">'+url+'</a>';
    }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
      return  reply.charAt(0)+'<a href="http://www.twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
    });
    statusHTML.push('<li><img class="twitter-mark" src="http://www.taiyoudenki.com/img/fukidashi.gif" alt="" /><span>'+status+'</span><br /><span style="font-size:85%">Twitter : '+relative_time(twitters[i].created_at)+'</span></li>');
  }
  document.getElementById('twitter_update_list').innerHTML = statusHTML.join('');
}

function relative_time(time_value) {
  var values = time_value.split(" ");
  time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
  var parsed_date = Date.parse(time_value);
  var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
  var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
  delta = delta + (relative_to.getTimezoneOffset() * 60);

  if (delta < 60) {
    return 'less than a minute ago';
  } else if(delta < 120) {
    return 'about a minute ago';
  } else if(delta < (60*60)) {
    return (parseInt(delta / 60)).toString() + ' minutes ago';
  } else if(delta < (120*60)) {
    return 'about an hour ago';
  } else if(delta < (24*60*60)) {
    return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
  } else if(delta < (48*60*60)) {
    return '1 day ago';
  } else {
    return (parseInt(delta / 86400)).toString() + ' days ago';
  }
}



/* Mouse over
---------------------------------------------------------------------- */

$(function(){
	$(document).ready(function(){
	$(function() { 
	$("#main a img, #contact-box a img, #index-main .ads a img").css("opacity","1");
	//初期設定として画像のopacityを0にします。
	$("#main a img, #contact-box a img, #index-main .ads a img").hover( //hoverです。
	function () {
	$(this).stop().animate({opacity: 0.55, easing: "linear"}, 250 );},
	function () {
	$(this).stop().animate({opacity: 1}, 'fast');}
	);
	});
	});
});



/* focus
---------------------------------------------------------------------- */

$(document).ready(function($) {
	$('a').focus(function(){this.blur();});
});
         
// -->