jQuery(function($) {

    // index current highlight.
    var current_category = ''
    var hostname = window.location.hostname;
    if(hostname == 'tumblr.ini.co.jp'||hostname == 'blog.ini.co.jp') {
        current_category = 'blog';
    }
    if(!current_category) {
        current_category = window.location.pathname.split('/')[1];
        if(!current_category|current_category == 'index.html') {
            current_category = 'home';
        }
    }
	$('#index li').each(function() {
	   if($(this).hasClass(current_category)) {
	       //$(this).addClass('current');
	       var img = $(this).find('a > img');
	       img_src = img.attr('src');
	       var ext_index = img_src.lastIndexOf('.');
	       img_src = img_src.substr(0, ext_index) + '_current' + img_src.substr(ext_index);
	       img.attr('src', img_src);
	   }
	});
    
    // index rollover
    var preload_img = new Object();
    $('#index img').each(function() {
        var img_src = this.src;
        if(!img_src.match(/_current/)) {
            var ext_index = img_src.lastIndexOf('.');
            var om_img_src = img_src.substr(0, ext_index) + '_onmouse' + img_src.substr(ext_index);
            preload_img[img_src] = new Image();
            preload_img[img_src].src = om_img_src;
            $(this).hover(
                function() {
                    this.src = om_img_src;
                },
                function() {
                    this.src = img_src;
                }
            );
        }        
    });

});