function jb_active_tab(obj){
		var curentTab=obj.id;
		var curentContent=curentTab.replace("tab","cont");

		curentContent_1=curentTab.replace("tab","cont");
		var tabs=$('#' + curentTab).parent().children();
		var contents=$('#' + curentContent).parent().children();

		$(tabs).each( function(){								
				if($(this).hasClass("active")) $(this).removeClass('active');		   
				//$(this).attr('class','');
		});		
		
		$(contents).each( function(){								
				$(this).hide();
		});	
		
		$('#' + curentTab).addClass('active');
		$('#' + curentContent).fadeIn('slow');	
		var pos =0;
		
		switch (curentTab){
			case "tab7":
				pos='left top';
				break;
			case "tab8":
				pos='left center';
				break;
			case "tab9":
				pos='left bottom';
				break;
			}
		$('#'+curentTab).parent().css({'backgroundPosition':pos});

}
/*show picture*/
var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;
function animate(){
	var elem = document.getElementById('progress');
	if(elem != null){
		if (pos==0) len += dir;
		if (len>32 || pos>79) pos += dir;
		if (pos>79) len -= dir;
		if (pos>79 && len==0) pos=0;
		elem.style.left = pos;
		elem.style.width = len;
	}
}
function remove_loading(){
	this.clearInterval(t_id);
	var targelem = document.getElementById('loader_container');
	targelem.style.display='none';
	targelem.style.visibility='hidden';
	var t_id = setInterval(animate,60);
}