/* CSS差分ファイル読み込み */

function ReDir(num){

	if(num==0){
		dir ="";
	}else if(num==1){
		dir ="../";
	}else if(num==2){
		dir ="../../";
	}else if(num==3){
		dir ="../../../";
	}else if(num==4){
		dir ="../../../../";
	}else if(num==5){
		dir ="../../../../../";
	}
	return dir;
}


function ReadCss(num){

	var dir="";
	var fName="";
	var ua = navigator.userAgent.toUpperCase();
	var plt = (navigator.platform) ? navigator.platform : 'Other';
	
	if(ua.indexOf('MAC OS X') > -1){
		if(ua.indexOf('SAFARI') > -1){
			fName = "df_safari.css";
		}else if(ua.indexOf('GECKO') > -1){
			fName = "df_macgecko.css";
		}
	}else if(plt.indexOf('Mac') > -1){
		//For Mac OS9
	}else if(navigator.appName.indexOf('Microsoft') > -1){
		//For VISTA IE7
		//if(ua.indexOf("NT 6.0") != -1 || ua.indexOf("WS V") != -1){
			//if(navigator.appVersion.indexOf('MSIE 7') > -1){
				//fName = "df_ie7v.css";
			//}
		//}else
		if(navigator.appVersion.indexOf('MSIE 6') > -1){
			fName = "df_ie6.css";
		}else if(navigator.appVersion.indexOf('MSIE 7') > -1){
			fName = "df_ie7.css";
		}else if(navigator.appVersion.indexOf('MSIE 8') > -1){
			fName = "df_ie8.css";
		}
	}

	if(fName!=""){
		dir = ReDir(num);
		document.write('<link rel="stylesheet" href="' + dir + 'common/css/df_files/' + fName + '" type="text/css">');
	}

}


/* ロールオーバー用 */

jQuery(document).ready(function($) {
    var postfix = '_on';
    $('img.btn').not('[src*="'+ postfix +'."]').each(function() {
        var img = $(this);
        var src = img.attr('src');
        var src_on = src.substr(0, src.lastIndexOf('.'))
                   + postfix
                   + src.substring(src.lastIndexOf('.'));
        $('<img>').attr('src', src_on);
        img.hover(
            function() {
                img.attr('src', src_on);
            },
            function() {
                img.attr('src', src);
            }
        );
    });
});