function Add_Cart(prod_code,prod_size,prod_price,prod_id)
{		
		new Ajax.Request('/includes/ajax_cust.php', 
		{	
			method: 'get' ,
			parameters: {proc:'add_cart_session',prod_code:prod_code,prod_size:prod_size,prod_price:prod_price,prod_id:prod_id},
			onSuccess: function(reciever)
			{
					var rstring = reciever.responseText;
					// if (rstring == 1)
							// alert('problem');
					if (rstring != 1 && rstring != 2 && rstring != 3)
					{
							$('totalpiece').innerHTML =  parseInt($('totalpiece').innerHTML) + 1;
							$('myCart').innerHTML = rstring;
							
							var goodsCost = parseInt($('goodsCost').innerHTML);
							if (prod_code.substring(0,2).toLowerCase() != 'ip')
								goodsCost = goodsCost + parseInt(prod_price);
							Calculate_Cost(goodsCost);
							if 	($('cartwrap').style.display=="none")
							{
										$('cartwrap').style.display="block";
							}
							if ($('watermark').style.display == "none")
							{
									$('watermark').style.display = "inline";
									$('toggle_wm_button').src = "/sites/idea_kid/images/closewatermark.gif";
							}
					}
					else
					{
							if  (rstring == 1)
									alert('คุณหยิบสินค้านี้แล้วและไม่สามารถเพิ่มสินค้าได้อีก เนื่องจากของใน stock มีไม่พอ ลองกด F5 เพื่อดูรายการสินค้าที่เลือกแล้วใต้ตัวเด็กด้านขวามือค่ะ');
										else if (rstring == 3)
												alert("คุณไม่สามารถซื้อสินค้า iPoint ได้หากยังไม่ Login ค่ะ");
														else if (rstring == 2)
																alert("คุณมี iPoint ไม่พอค่ะ");
					}
			}
		}
		);
}

function Clear_Cart()
{
		new Ajax.Request('/includes/ajax_cust.php', 
		{	
			method: 'get' ,
			parameters: {proc:'clear_cart'},
			onSuccess: function(reciever)
			{
				$('myCart').innerHTML = '';
				$('goodsCost').innerHTML = '0';
				$('deliveryCost').innerHTML = '30';
				$('totalCost').innerHTML = '30';
					if 	($('cartwrap').style.display=="block")
					{
								$('cartwrap').style.display="none";
					}								
			}
		}
		);			
}

function Remove_Cart(rItem,prod_price)
{
		new Ajax.Request('/includes/ajax_cust.php', 
		{	
			method: 'get' ,
			parameters: {proc:'remove_cart_session',rItem:rItem},
			onSuccess: function(reciever)
			{			
						$('totalpiece').innerHTML =  parseInt($('totalpiece').innerHTML)-1;
						var amount_name = 'amount_cart_' + rItem;
						var amount = parseInt($(amount_name).innerHTML);						
						if (amount>1)
								$(amount_name).innerHTML = amount-1;
						else
								$('myCart').removeChild($('cart_'+rItem));
						var rm_prod_code = reciever.responseText;						
						var goodsCost = parseInt($('goodsCost').innerHTML);
						// if (rm_prod_code.substring(0,2).toLowerCase() == 'ip')
								// alert(rm_prod_code);
						if (rm_prod_code.substring(0,2).toLowerCase() != 'ip')
								goodsCost = goodsCost - parseInt(prod_price);
						Calculate_Cost(goodsCost);
						if (goodsCost == 0)
							$('cartwrap').style.display="none";
			}
		}
		);
}

function toggle_ems()
{
		window.location = "/includes/ajax_cust.php?proc=ems_toggle";
}

function Calculate_Cost(goodsCost)
{			
			$('totalCost').innerHTML = goodsCost;
			if (goodsCost > 800)
			{
						$('deliveryCost').innerHTML = '0';
			}
			else
			{
						$('deliveryCost').innerHTML = '30';
						$('totalCost').innerHTML = goodsCost + 30;
			}
			$('goodsCost').innerHTML = goodsCost;
}

function Show_Picture(picturename,flag)
{
		//var item_image = document.createElement('div');
		if (flag == 1)
		{
			$('show_picture').style.display = "block";
			$('show_picture').innerHTML = '<img src=' + picturename + ' width=150>';		
		}
		else
			$('show_picture').style.display = "none";
}

function toggle_watermark()
{
		if ($('watermark').style.display == "none")
		{
				$('watermark').style.display = "inline";
				$('toggle_wm_button').src = "/sites/idea_kid/images/closewatermark.gif";		
		}
		else
		{
				$('watermark').style.display = "none";
				$('toggle_wm_button').src = "/sites/idea_kid/images/openwatermark.gif";
				
		}
		new Ajax.Request('/includes/ajax_cust.php', 
		{	
			method: 'get' ,
			parameters: {proc:'watermark_toggle'}
		})
}