// JavaScript Document


//初期設定
var posX=0; //現在の座標
var endX=0;
var displayW=500;
var speed=10;
var timer;

//
function startmove(turn){
	slideItem=document.getElementById
	("slideItems");
	if(!timer){
		if(turn=="right"){
			if(posX<=(slideItem.offsetWidth-displayW)*-1){
				endX=(sledeItem.offsetWidth-displayW)*-1;
			}else{
				endX=posX-displayW;
			}
		}else{
			if(posX>=0){
			   endX=0;
			   }else{
				   endX=posX+displayW;
			   }
		}
		timer=setInterval("move()",1);
	}
}

function move(){
	posX+=(endX-posX)/speed;
	if(Math.abs(endX-posX)<=1){
		document.getElementById("slideItems").
		style.left=endX+"px";
		posX=endX;
		clearInterval(timer);
		timer=undefined;
	}else{
		document.getElementById("slideItems").
		style.left=posX+"px";
	}
}