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 == 'hover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_h'+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;

var material = new Array;
material[0] = "div_visual_01.jpg";
material[1] = "div_visual_02.jpg";
material[2] = "div_visual_04.jpg";
material[3] = "div_visual_05.jpg";

$(function(){
  var seed = Math.floor(material.length * Math.random());
  var path = "/wp-content/themes/alsok/images/index/" + material[seed];
  $("#visual img").attr("src",path);

  $('#ddd a').click(function(){
    $('#header').ScrollTo(800, 'easeout');
    return false;
  });

  $("table.history tr:odd").addClass("odd");
  $("table.recruit tr:even").addClass("even");
  $("table.recruit tr:odd").addClass("odd");
  $("ul.news li:even").addClass("even");
  $("ul.news li:odd").addClass("odd");
});