$(document).ready(function() {

jQuery("#top").click(function(event){  
        event.preventDefault();  
        var full_url = this.href;  
        var parts = full_url.split("#");   
        var trgt = parts[1];   
        var target_offset = jQuery("#"+trgt).offset();   
        var target_top = target_offset.top;  
        jQuery('html, body').animate({  
            scrollTop:target_top  
        }, 1000);  
});  
	
	
	

});