/* -----------------------------------------------------------------------------------
	common.js
	by Noriyuki Kitakoga
-------------------------------------------------------------------------------------*/

/* rollovers
-------------------------------------------------------------------------------------*/
window.onload = function(){
	var images = new Array();
	var imgOver=new Array();
	
	var allElements = document.getElementsByTagName('img');
	for (var i=0, len=allElements.length; i<len; i++){
		if (allElements[i].className == "hover"){
			images.push(allElements[i]);
		}
	}
	
	for(var i=0;i<images.length;i++){
		imgOver[i] = new Image; 
		var ftype=images[i].src.substring(images[i].src.lastIndexOf('.'),images[i].src.length);
  	imgOver[i].src = images[i].src.split(ftype)[0]+"_over"+ftype;
		images[i].onmouseover = function(){
			ftype=this.src.substring(this.src.lastIndexOf('.'),this.src.length);
			this.src = this.src.split(ftype)[0]+"_over"+ftype;
			}
		images[i].onmouseout = function(){
			this.src = this.src.split("_over.")[0]+ftype;
			}
	}
		
}


/* backToTop
-------------------------------------------------------------------------------------*/
function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;
    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }
    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }
    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;
    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));
    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}



/* ---------- GetYear ---------- */
function getRealTime(){
	DayString     = new Array("sun","mon","tue","wed","thu","fri","sat");
	var day=new Date();
	var time=day.getFullYear()+"."+(day.getMonth() +1)+"."+day.getDate()+"("+DayString[day.getDay()]+") "+day.getHours()+":"+day.getMinutes();
	return document.write(time);
}
function getRealYear(){
	var day=new Date();
	var year=day.getFullYear();
	return document.write(year);
}