$(function(){
            $('#egcGNav a').animateToSelector({
                selectors: ['#egcGNav a:hover'],
                properties: [
                    'background-position',
                    'padding-left',
                    'color'
                ],
                duration:600,
                events: ['mouseover', 'mouseout']
            });
         });

	/* ページの先頭へ戻る
	 --------------------------------------------------------------------------- */
function backToTop() {  
    var x1 = x2 = x3 = 0;  
    var y1 = y2 = y3 = 0;  
    if (document.documentElement) {  
        x1 = document.documentElement.scrollLeft || 0;  
        y1 = document.documentElement.scrollTop || 0;  
    }  
    if (document.body) {  
        x2 = document.body.scrollLeft || 0;  
        y2 = document.body.scrollTop || 0;  
    }  
    x3 = window.scrollX || 0;  
    y3 = window.scrollY || 0;  
    var x = Math.max(x1, Math.max(x2, x3));  
    var y = Math.max(y1, Math.max(y2, y3));  
    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));  
    if (x > 0 || y > 0) {  
        window.setTimeout("backToTop()", 60);  
    }  
}