var istRollOver = {
	preloadedImages:new Array(),
	preloadImage:function(uri){
		var plength = istRollOver.preloadedImages.length
		istRollOver.preloadedImages[plength] = new Image();
		istRollOver.preloadedImages[plength].src = uri;
	}
}

var contentsList ={
concept:'01',
premiolity_lineup:'02',
suisai_lineup:'03',
skincare:'04',
present:'07',
cm:'05',
special:'06'
};

jQuery(function(){
	var bodyClass = jQuery('body').attr("class");
	var conf = {id:"share_navi"}
	jQuery(".imgover").each(function(){
		this.oSrc = this.src;
		this.rSrc = this.oSrc.replace(/(\.gif|\.jpg|\.png)/, "_o" + "$1");
		istRollOver.preloadImage(this.rSrc);
		if(this.src.indexOf(conf.id + contentsList[bodyClass]) > -1){
			this.sSrc = this.oSrc.replace(/(\.gif|\.jpg|\.png)/, "_o" + "$1");
			istRollOver.preloadImage(this.sSrc);
			this.src = this.sSrc;
		}else{
			jQuery(this).hover(function(){
				this.src = this.rSrc;
			},function(){
				this.src = this.oSrc;
			});
		}
	});
});