function isDigit(num)
{
	var string="1234567890";
	if (string.indexOf(num)!=-1)
	{
		return true;
	}
	return false;
}
function isInteger(val)
{
	for(var i=0;i<val.length;i++)
	{
		if(!isDigit(val.charAt(i)))
		{
			return false;
		}
	}
	return true;
}
function GetPrices(count)
{
	document.getElementById("txtQuantity").value=parseInt(document.getElementById("txtQuantity").value)+count;
	if(document.getElementById("txtQuantity").value==0)
	{
		document.getElementById("txtQuantity").value=1;
	}
	var pid=document.getElementById("hidpid").value;
	var quantity=parseInt(document.getElementById("txtQuantity").value);
	var unitprice=SiteContentMaster.product_detail.GetUnitPriceByQuantity(pid,quantity).value;
	var price=document.getElementById("hidprice").value;
	var wholeprice=unitprice.toFixed(2);
	var totalprice=(unitprice*quantity).toFixed(2);
	var saveprice=(price*quantity-totalprice).toFixed(2);
	document.getElementById("labwholeprice").innerHTML="$"+wholeprice+" x "+quantity+" = $"+totalprice;
	document.getElementById("labtotalprice").innerHTML=totalprice;
	document.getElementById("labsaveprice").innerHTML=saveprice;
}
function GetPrice()
{
	if(document.getElementById("txtQuantity").value!="")
	{
		if(!isInteger(document.getElementById("txtQuantity").value))
		{
			document.getElementById("txtQuantity").value=1;
		}
		if(document.getElementById("txtQuantity").value==0)
		{
			document.getElementById("txtQuantity").value=1;
		}
		var pid=document.getElementById("hidpid").value;
		var quantity=document.getElementById("txtQuantity").value;
		var unitprice=SiteContentMaster.product_detail.GetUnitPriceByQuantity(pid,quantity).value;
		var price=document.getElementById("hidprice").value;
		var wholeprice=unitprice.toFixed(2);
		var totalprice=(unitprice*quantity).toFixed(2);
		//var saveprice=(price*quantity-totalprice).toFixed(2);
		totalprice=SiteContentMaster.product_detail.GetPriceByCartCurrencyAjax(totalprice).value;
		document.getElementById("labwholeprice").innerHTML=totalprice.toFixed(2);
		//document.getElementById("labtotalprice").innerHTML=totalprice;
		//document.getElementById("labsaveprice").innerHTML=saveprice;
	}
}
function checkComment()
{
	if(document.getElementById('rdoStar5').checked==false && document.getElementById('rdoStar4').checked==false && document.getElementById('rdoStar3').checked==false && document.getElementById('rdoStar2').checked==false && document.getElementById('rdoStar1').checked==false)
	{
		alert("Please choose star!");
		return false;
	}
	else if(document.getElementById('txtTitle').value=="")
	{
		alert("Please enter title!");
		return false;
	}
	else if(document.getElementById('txtContent').value=="")
	{
		alert("Please enter content!");
		return false;
	}
	else
	{
		return true;
	}
}
function showlayer()
{
    document.getElementById("invisible_layer").style.display="";
}
function hidelayer()
{
    document.getElementById("invisible_layer").style.display="none";
}