/* ロードスクリプト */
$('document').ready(
	function(){
		/* 選択済の本文サイズに設定 */
		if($.cookie('cluster_e_fontsize')){
			setFontSize($.cookie('cluster_e_fontsize'),true);
		}
		
		/* アンカーリンクのスムース化 */
		$('a[href^=#]').click(
			function(){
				var href = this.hash;
				var targetObj = $(href=='#_top'?'body':href);
				if(targetObj.size()){
					var top = targetObj.offset().top;
					$($.browser.safari?'body':'html').animate({scrollTop:top});
 					/*$.scrollTo(targetObj,800,{easing:'swing'});*/
					return false;
				}
			}
		);
		
		/* apply fancybox */
		if($.fancybox){
			/* setting popup */
			$('#international01 a.fancybox,#overview03 a.fancybox').fancybox({'type':'image','width':800,'autoScale':false})
		}
		
		/* preload header images */
		if(document.body.id=="home"){
			var tmpStr = location.href;
			var tmp1 = tmpStr.lastIndexOf('english/');
			var tmp2 = tmpStr.substring(0,tmp1);
			var tmpPath = tmp2+'english/';
		
			var tmpImg = new Array();
			for (var i=0;i<6;i++){
				tmpImg[i] = new Image();
			}
			tmpImg[0].src = tmpPath+"images/overview/h1_image.jpg";
			tmpImg[1].src = tmpPath+"images/research/h1_image.jpg";
			tmpImg[2].src = tmpPath+"images/regional/h1_image.jpg";
			tmpImg[3].src = tmpPath+"images/international/h1_image.jpg";
			tmpImg[4].src = tmpPath+"images/result/h1_image.jpg";
			tmpImg[5].src = tmpPath+"images/management/h1_image.jpg"
		}
	}
);


/* 本文サイズ制御 */
/* statがtrueの場合はアニメートしない */
function setFontSize(val,stat){
	$('#header_sizemenu li a').css({backgroundPosition:"left bottom"});
	switch(val){
		case "large":
			(!stat)?$('body').animate({fontSize:"14px",lineHeight:"160%"},"fast"):$('body').css({fontSize:"14px",lineHeight:"160%"});
			$('#size_large').css({backgroundPosition:"left top"});
			$.cookie('cluster_e_fontsize','large',{path:'/'});
			break;
		case "small":
			(!stat)?$('body').animate({fontSize:"10px",lineHeight:"160%"},"fast"):$('body').css({fontSize:"10px",lineHeight:"160%"});
			$('#size_small').css({backgroundPosition:"left top"});
			$.cookie('cluster_e_fontsize','small',{path:'/'});
			break;
		default:
			(!stat)?$('body').animate({fontSize:"12px",lineHeight:"160%"},"fast"):$('body').css({fontSize:"12px",lineHeight:"160%"});
			$('#size_middle').css({backgroundPosition:"left top"});
			$.cookie('cluster_e_fontsize','middle',{path:'/'});
		}
}


/* クッキー操作用関数（jQuery.cookieの転載）  */
jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};