jQuery.fn.prepare_slider = function(){	
		var x_pos = 0;
		var li_items_n = 0;	
		var right_clicks = 0;		
		var left_clicks = 0;					
		var li_col = jQuery("#slider_list > li");		
		var li_width = li_col.outerWidth(true);		
		var viewWindow = Math.round(jQuery('.box-top').width()/li_width);
		li_col.each(function(index){			
			x_pos += jQuery(this).outerWidth(true);
			li_items_n++;								
		})	
		right_clicks = li_items_n - viewWindow;
		total_clicks = li_items_n - viewWindow;		
		jQuery('#slider_list').css('position','relative');
		jQuery('#slider_list').css('left','0px');
		jQuery('#slider_list').css('width', x_pos+'px');
		var is_playing = false;
		var completed = function() { is_playing = false; }
		jQuery('#left_but').click( function(){													
			cur_offset = jQuery('#slider_list').position().left;
			if (!is_playing){						
				if (left_clicks > 0) {
						is_playing = true; 
						jQuery('#slider_list').animate({'left': 0 + 'px'}, 700, "linear", completed); 
						right_clicks++; 
						//left_clicks--;
						left_clicks=-1;
						//alert('left_clicks');
					} 
					else {
						is_playing = true;
						jQuery('#slider_list').animate({'left':    -li_width*total_clicks	+ 'px'}, 700, "linear", completed); 
						right_clicks = 0;
						left_clicks = total_clicks;
						//left_clicks = 1;
						//alert('else left_clicks');
					}
			}
		});		

		jQuery('#right_but').click( function(){
			if (!is_playing){			
				cur_offset = jQuery('#slider_list').position().left;			
			 	if (right_clicks > 0) {
						is_playing = true; 
						jQuery('#slider_list').animate({'left': (cur_offset - li_width)*3 + 'px'},700, "linear", completed );
						//right_clicks--;
						right_clicks=-1;
						left_clicks++;
						//alert('right_clicks');
				} 
				else { 
						is_playing = true; 
						jQuery('#slider_list').animate({'left':    0	+ 'px'},700, "linear", completed ); 
						left_clicks = 0;
						right_clicks = total_clicks;
						//alert('else right_clicks');
					}			 
			}
		});	
	}

jQuery.fn.over = function(){						
	jQuery(this).hover(
	   function () {
	 	 jQuery(this).addClass("over");		 
		 var hint_width = jQuery(this).find('.hint').width();
		 var left_indent = (220 - hint_width)/2-10;
		 jQuery(this).find('.hint').css("left", left_indent);
	   },
	   function () {
	 	 jQuery(this).removeClass("over");
	   }
	 );		
   }
jQuery.fn.over2 = function(){						
	jQuery(this).hover(
	   function () {
	 	 jQuery(this).addClass("over");	
	   },
	   function () {
	 	 jQuery(this).removeClass("over");
	   }
	 );		
   }

jQuery.fn.intro = function(){
	var slider_link = jQuery('.slider .box-right img');
	var slider_link_index = 4;
	var slider_count = jQuery('#slider_list > li').size();	
	function slider_intro(){													
		if(slider_link_index <= slider_count){
			slider_link.trigger('click');
			slider_link_index++;
			setTimeout(function(){slider_intro()}, 7000); //select change time
		}				
	}		
	setTimeout(function(){slider_intro()}, 7000)
}