var currentImage = 1;
var totalImage = 4;

function nextImage(){
 	animateUp();
		
	currentImage = currentImage + 1;
	if(currentImage > totalImage){
		currentImage = 1;
	}
	
	animateDown();	
}


function previousImage(){
 	animateUp();
		
	currentImage = currentImage - 1;
	if(currentImage < 1){
		currentImage = totalImage;
	}
		
	animateDown();	
}

$(document).ready(function(){
	animateDown();
	
	try{
	$("#slider").slider({
			value:10,
			min: 0,
			max: 10,
			step: 1,
			stop: function(event, ui) {
				document.getElementById('rating').value = ui.value;
			},		
			slide: function(event, ui) {
				$("#amount").val('$' + ui.value);
			}
		});
		$("#amount").val('$' + $("#slider").slider("value"));
	}catch(e){}
});

// animate Up
function animateUp(){
	$("#package_"+currentImage).animate({ 
		top: "-309px"       
	}, 300 );
}

// animate Down
function animateDown(){
	$("#package_"+currentImage).animate({ 
		top: "-1px"       
	}, 300 );
	try{
		document.getElementById('productId').value = currentImage;
	}catch(e){}
}	


// open terms popup
function openTermsPopUp(){
	document.getElementById('packageTerms').style.display = "block";
	document.getElementById('packageTermsFix').style.display = "block";
}

function closeTermsPopUp(){
	document.getElementById('packageTerms').style.display = "none";
	document.getElementById('packageTermsFix').style.display = "none";
}