//////////////////////////////////////////////////////////////////
/// Image rollover
//////////////////////////////////////////////////////////////////
function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var aImages = document.getElementsByTagName('img');
	var inputBtn = document.getElementsByTagName('input');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'rollover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_over'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			aImages[i].setAttribute('bsrc', src);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				this.setAttribute('src', this.getAttribute('bsrc'));
			}

			aImages[i].onclick = function() {
				this.setAttribute('src', this.getAttribute('bsrc'));
			}
		}
	}

	for (var i = 0; i < inputBtn.length; i++) {		
		if (inputBtn[i].className == 'rollover') {
			var src = inputBtn[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_over'+ftype);

			inputBtn[i].setAttribute('hsrc', hsrc);
			inputBtn[i].setAttribute('bsrc', src);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			inputBtn[i].onmouseover = function() {
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			inputBtn[i].onmouseout = function() {
				this.setAttribute('src', this.getAttribute('bsrc'));
			}

			inputBtn[i].onclick = function() {
				this.setAttribute('src', this.getAttribute('bsrc'));
			}
		}
	}
}

window.onload = initRollovers;



//////////////////////////////////////////////////////////////////
/// Window open
//////////////////////////////////////////////////////////////////

// 汎用
function openSubWindow(uri,name,w,h) {
	subWindow = window.open(uri,name,"location=no,directories=no,toolbar=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+w+",height="+h+",left=5,top=5");
	subWindow.focus();
	return false;
}

// 個別
function openGuideWindow(url) {
	subWindow = window.open(url,'guide','location=no,directories=no,toolbar=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=750,height=600');
	subWindow.focus();
	return false;
}



//////////////////////////////////////////////////////////////////
/// Scroll
//////////////////////////////////////////////////////////////////
var ss = {
  fixAllLinks: function() {
    var allLinks = document.getElementsByTagName('a');
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if ((lnk.href && lnk.href.indexOf('#') != -1) && 
          ( (lnk.pathname == location.pathname) ||
	    ('/'+lnk.pathname == location.pathname) ) && 
          (lnk.search == location.search)) {
        ss.addEvent(lnk,'click',ss.smoothScroll);
      }
    }
  },

  smoothScroll: function(e) {
    if (window.event) {
      target = window.event.srcElement;
    } else if (e) {
      target = e.target;
    } else return;
    if (target.nodeName.toLowerCase() != 'a') {
      target = target.parentNode;
    }
    if (target.nodeName.toLowerCase() != 'a') return;
    anchor = target.hash.substr(1);
    var allLinks = document.getElementsByTagName('a');
    var destinationLink = null;
    for (var i=0;i<allLinks.length;i++) {
      var lnk = allLinks[i];
      if (lnk.name && (lnk.name == anchor)) {
        destinationLink = lnk;
        break;
      }
    }
    if (!destinationLink) return true;
  
    var destx = destinationLink.offsetLeft; 
    var desty = destinationLink.offsetTop;
    var thisNode = destinationLink;
    while (thisNode.offsetParent && 
          (thisNode.offsetParent != document.body)) {
      thisNode = thisNode.offsetParent;
      destx += thisNode.offsetLeft;
      desty += thisNode.offsetTop;
    }
    clearInterval(ss.INTERVAL);
  
    cypos = ss.getCurrentYPos();
  
    ss_stepsize = parseInt((desty-cypos)/ss.STEPS);
    ss.INTERVAL =
setInterval('ss.scrollWindow('+ss_stepsize+','+desty+',"'+anchor+'")',10);
    if (window.event) {
      window.event.cancelBubble = true;
      window.event.returnValue = false;
    }
    if (e && e.preventDefault && e.stopPropagation) {
      e.preventDefault();
      e.stopPropagation();
    }
  },

  scrollWindow: function(scramount,dest,anchor) {
    wascypos = ss.getCurrentYPos();
    isAbove = (wascypos < dest);
    window.scrollTo(0,wascypos + scramount);
    iscypos = ss.getCurrentYPos();
    isAboveNow = (iscypos < dest);
    if ((isAbove != isAboveNow) || (wascypos == iscypos)) {
      window.scrollTo(0,dest);
      clearInterval(ss.INTERVAL);
      location.hash = anchor;
    }
  },

  getCurrentYPos: function() {
    if (document.body && document.body.scrollTop)
      return document.body.scrollTop;
    if (document.documentElement && document.documentElement.scrollTop)
      return document.documentElement.scrollTop;
    if (window.pageYOffset)
      return window.pageYOffset;
    return 0;
  },

  addEvent: function(elm, evType, fn, useCapture) {
    if (elm.addEventListener){
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent){
      var r = elm.attachEvent("on"+evType, fn);
      return r;
    } else {
      alert("Handler could not be removed");
    }
  } 
}

ss.STEPS = 15;

ss.addEvent(window,"load",ss.fixAllLinks);