function strpos (haystack, needle, offset) {
  var i = (haystack+'').indexOf(needle, (offset || 0));
  return i === -1 ? false : i;
}
$(document).ready(function () {
	
	$('td[class*=sublink]').hover(function () { 
		var class =  $(this).attr('class');
		$(this).removeClass(class);
		$(this).addClass(class+'_over');
	} 
	,
	function (){	
		var class =  $(this).attr('class');
		class = class.split("_");
		$(this).removeClass('sublink_'+class[1]+'_over');
		$(this).addClass('sublink_'+class[1]);
	});
	
	$(".block_main_1, .block_main_3").hover(
	    function() {
	        $(this).find(".block_photo > img.a").stop().animate({"opacity": "0"}, "slow");
	    },
	    function() {
	        $(this).find(".block_photo > img.a").stop().animate({"opacity": "1"}, "slow");
	    });

	$('.long').hide();
	$('.short').show();
	$('.short').click(function(){
		$(this).hide();
		$(this).next('.long').show();
	});
	$('.long').click(function(){
		$(this).hide();
		$(this).prev('.short').show();
	});
	
});