jquery.js

 var playing = false; 
 var score;
 var trialsleft;
 var step;
 var action;
 var fruits=['apple','banana','pineapple','orange','grapes','watermelon','carrot','cherry','guava'];
 $(function(){
 	$("#startreset").click(function(){
 		if (playing==true) {
 			location.reload();
 		}
 		else{
 			playing=true;
 			score=0;
 			$("#scorevalue").html(score);
 			$("#trialsleft").show();
 			trialsleft=3;
			addHearts();
			$("#gameOver").hide();
			$("#startreset").html("Reset Game");
			startAction();
 		}
 	});
	$("#fruit1").mouseover(function(){
		score++;
		$("#scorevalue").html(score);
		document.getElementById("slicesound").play();
		clearInterval(action);
		$("#fruit1").hide("explode", 500);
		setTimeout(startAction,500);
		
	});
 function addHearts(){
	 $("#trialsleft").empty();
	for (var i = 0; i < trialsleft; i++) {
		$("#trialsleft").append('<img src="images/heart.png" class="life">');
	}
 }
 function startAction(){
	$("#fruit1").show();
	chooseFruit();
	$("#fruit1").css({'left' : Math.round(550*Math.random()), 'top' :-50});

	 step=1+Math.round(5*Math.random());
	 action = setInterval(function(){
		 $("#fruit1").css('top', $("#fruit1").position().top + step);
		 if($("#fruit1").position().top > $("#fruitsContainer").height()){
			  if(trialsleft>1){
				$("#fruit1").show();
				chooseFruit();
				$("#fruit1").css({'left' : Math.round(550*Math.random()), 'top' :-50});
			
				 step=1+Math.round(5*Math.random());
				 trialsleft--;
				 addHearts()

			  }else{
				playing=false;
				$("#startreset").html("Start Game");
				$("#gameOver").show();
				$("#gameOver").html('<p>Game Over</p><p>Your Score is: '+ score +'</p>');
				$("#trialsleft").hide();
				stopAction();
			  }
		 }
	 }, 10);

 }

 function chooseFruit(){
	$("#fruit1").attr('src' , 'images/' + fruits[Math.round(8*Math.random())] + '.png');
 }

 function stopAction(){
	 clearInterval(action);
	 $("#fruit1").hide();
 }
});