function writeKeyVisualL(){
	var aryImage = new Array("fa_top_l_01.jpg","fa_top_l_02.jpg","fa_top_l_03.jpg","fa_top_l_04.jpg","fa_top_l_05.jpg","fa_top_l_06.jpg","fa_top_l_07.jpg");
	var randomNumber = Math.floor(Math.random() * aryImage.length);
	var strPath = "image/top/" + aryImage[randomNumber];
	if(document.all){
		document.all("leftImage").src = strPath;
	}
	else if(document.getElementById){
		document.getElementById("leftImage").src = strPath;
	}
}

function writeKeyVisualR(){
	var aryImage = new Array("fa_top_r_01.jpg","fa_top_r_02.jpg","fa_top_r_03.jpg");
	var randomNumber = Math.floor(Math.random() * aryImage.length);
	var strPath = "image/top/" + aryImage[randomNumber];
	if(document.all){
		document.all("rightImage").src = strPath;
	}
	else if(document.getElementById){
		document.getElementById("rightImage").src = strPath;
	}
}