//ロールオーバー



function initRollovers() {

	if (!document.getElementById) return

	

	var aPreLoad = new Array();

	var sTempSrc;

	var aImages = document.getElementsByTagName('img');



	for (var i = 0; i < aImages.length; i++) {		

		if (aImages[i].className == 'imgover') {

			var src = aImages[i].getAttribute('src');

			var ftype = src.substring(src.lastIndexOf('.'), src.length);

			var hsrc = src.replace(ftype, '_o'+ftype);



			aImages[i].setAttribute('hsrc', hsrc);

			

			aPreLoad[i] = new Image();

			aPreLoad[i].src = hsrc;

			

			aImages[i].onmouseover = function() {

				sTempSrc = this.getAttribute('src');

				this.setAttribute('src', this.getAttribute('hsrc'));

			}	

			

			aImages[i].onmouseout = function() {

				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace 

('_o'+ftype, ftype);

				this.setAttribute('src', sTempSrc);

			}

		}

	}

}



window.onload = initRollovers;





//画像先読み（CSS hover用）

function preload(imgs){

	for(var i = 0; i < imgs.length; i++){

		var imgObj = new Image();

		imgObj.src = imgs[i];

 }

}

preload(["http://www.sohzoku.jp/images/menu01_f2.gif", "http://www.sohzoku.jp/images/menu02_f2.gif", "http://www.sohzoku.jp/images/menu03_f2.gif", "http://www.sohzoku.jp/images/menu04_f2.gif"]);

//社長TVポップアップ
function disp(url){ 
window.open(url, "shachotv", "width=550,height=700,scrollbars=no"); 
}