function mainvisualimg(imgNum)
{
	var tagUl 	  = "<ul class='slides'>";
	var tagEnd 	  = "</ul>";
	
	document.write(tagUl);
	for (i = 1; i < imgNum +1 ; i++)
	{
		if (i < 10)
		{
			num = "0" + i;
		}
		else
		{
			num = i;
		}
		
		var valueHTML = "<li class='slide'><img src='img/home/mainvisual_" + num + "_pct.jpg' alt='' width='970' height='215' /></li>"
		document.write(valueHTML);
	}
	
	document.write(tagEnd);
}