//waittime
//画面中央で静止する時間(ms)
//初期設定では2500、つまり2.5秒静止にしてあります。
var waittime=2500;

var a,xPos,yPos,winx,winy,xx;
function Nagura(){
	a=0;
	//OP
	if(window.opera){
		winx=document.body.clientWidth;
		winy=document.body.clientHeight;
		nagura.style.left=parseInt(winx);
		yPos=(winy/2)-40+document.body.scrollTop;
		nagura.style.top=parseInt(yPos);
		}
	//IE
	else if(document.all){
		winx=document.body.clientWidth;
		winy=document.body.clientHeight;
		nagura.style.left=parseInt(winx);
		yPos=(winy/2)-40+document.body.scrollTop;
		nagura.style.top=parseInt(yPos);
		nagura.style.filter="alpha(opacity=0)";
		nagura.filters.alpha.opacity=100;
		}
	//GK
	else if(document.getElementById){
		winx=window.innerWidth;
		winy=window.innerHeight;
		document.getElementById("nagura").style.left=winx-200+'px';
		xPos=winx;
		yPos=(winy/2)-40+self.pageYOffset;
		document.getElementById("nagura").style.top=yPos+'px';
			document.getElementById("nagura").style.MozOpacity=1;
		}
	//NN
	else if(document.layers){
		winx=window.innerWidth;
		winy=window.innerHeight;
		document.nagura.left=winx;
		yPos=(winy/2)-40+self.pageYOffset;
		document.nagura.top=yPos;
			document.nagura.style.MozOpacity=100;
		}
	xx=((winx/2)+180)/20;
	StartMove();
	}

function StartMove(){
	if (a<19){
		//IE&OP
		if(document.all){
			xPos=nagura.style.left;
			nagura.style.left=parseInt(xPos)-xx;
			}
		//GK
		else if(document.getElementById){
			document.getElementById("nagura").style.left=xPos-xx+'px';
			xPos=xPos-xx;
			}
		//NN
		else if(document.layers){
			xPos=document.nagura.left;
			document.nagura.left=xPos-xx;
			}
		setTimeout('StartMove()',15);
		a++
		}
	else{
		a=0;
		setTimeout('MoveOut()',waittime);
		}
	}

function MoveOut(){
	if (a<22){
		//OP
		if(window.opera){
			xPos=nagura.style.left;
			nagura.style.left=parseInt(xPos)-xx;
			}
		//IE
		else if(document.all){
			xPos=nagura.style.left;
			nagura.style.left=parseInt(xPos)-xx;
			nagura.style.filter="alpha(opacity=0)";
			nagura.filters.alpha.opacity=100-(5*a);
			}
		//GK
		else if(document.getElementById){
			document.getElementById("nagura").style.left=xPos-xx+'px';
			document.getElementById("nagura").style.MozOpacity=(100-(5*a))/100;
			xPos=xPos-xx;
			}
		//NN
		else if(document.layers){
			xPos=document.nagura.left;
			document.nagura.left=xPos-xx;
			document.nagura.style.MozOpacity=100-(5*a);
			}
		setTimeout('MoveOut()',15);
		a++
		}
	}