$(document).ready(function(){
		$("img.hover").each(function(index){
						this.originalSrc = $(this).attr('src');
				this.hoverSrc = this.originalSrc.replace(".gif", "_h.gif");
						$(this).hover(function(){$(this).attr("src", this.hoverSrc);},
									   function(){$(this).attr("src", this.originalSrc);});
		}/**/);
}/**/
);