$(function() {    
    var cnt = 1;
    $("#global_navi_left li a").each(function () {
        $(this).mouseover(
			changeVisual(cnt,this.getAttribute("title"))
		);
        cnt++;
    });
});



function changeVisual (num, s) {

    return function() {

		$("#main_visual").html(
			
			"<h1><img usemap='#suntac' src='img/main/main_visual_" + num + ".jpg'" +
			"width='800' height='137' " +
			"title='For Management Create by SUNTAC' " +
			"alt='For Management Create by SUNTAC' /></h1>" +
			"<map name='suntac'><area shape='rect' coords='37,13,144,44' href='index.php' alt='サン電子株式会社' /></map>"+
			"<h2><img src='img/main/main_caption_" + num + ".jpg'" + 
			"width='800' height='52' " +
			"title='" + s + "' " + 
			"alt='" + s + "' /></h2>"
		
		);
    }

}