this.randomtip = function(){

	var pause = 17000; // define the pause for each tip (in milliseconds) 
	var length = $("#shop_list .popup").length; 
	var temp = -1;		

	this.getRan = function(){
		// get the random number
		//alert(length);
		var ran = Math.floor(Math.random()*length) + 1;
		
		return ran;
	};
	this.show = function(){
		var ran = getRan();
		
		
		$("#shop_list .popup").eq(ran).trigger("mouseover");
		//sleep(4000);
		$("#shop_list .popup").eq(ran).delay(3000).trigger("mouseout");
				
		//alert($("#shop_list div").eq(ran));
		
	};
	
	show(); setInterval(show,pause);
	
};

$(document).ready(function(){	
	randomtip();
});