$(function() {
	          var fixblock_height = $('#fixblock').height();
	          var fixblock_pos = $('#fixblock').position().top;
	          var flag = true;
	          $(window).scroll(function(){
	
	               if ($(window).scrollTop() > fixblock_pos){
	                    $('#fixblock').css({'position': 'fixed', 'top':'0px', 'z-index':'0'});
	                    $('#headblock').css('padding-bottom', fixblock_height+'px');
	               }else{
	                    $('#fixblock').css({'position': 'static'});
	                    $('#headblock').css('padding-bottom', '0px');
	               }
	          })
	     });