function check_cart(LG)
{
	for(i=0; i<document.forms['cart'].length; i++)
	{	
		myobject = document.forms['cart'].elements[i].name;
		if(myobject.indexOf("textvalue_") == -1)
		{
			strString = document.forms['cart'].elements[i].value;
			var strValidChars = "0123456789.";
			var strChar;
			var blnResult = true;
			
			if (strString.length == 0) 
			{
				alert(messages[LG]["nullquantities"]);
				return false;
			}
			if (strString == "0") 
			{
				alert(messages[LG]["nullquantities"]);
				return false;
			}
			//  test strString consists of valid characters listed above
			for (j = 0; j < strString.length && blnResult == true; j++)
			{
				strChar = strString.charAt(j);
				if (strValidChars.indexOf(strChar) == -1)
				{
					alert (messages[LG]["numericquantities"]);
					return false;
				}
			}	
		}
	} 
	document.forms['cart'].submit();
}

function show_save_text (id)
{
		document.getElementById('text_'+id).style.display = '';
		document.getElementById('save_'+id).style.display = '';		
}

function hide_save_text (id)
{
		document.getElementById('text_'+id).style.display = 'none';
		document.getElementById('save_'+id).style.display = 'none';
}

function save_product_text(id)
{
	text = document.getElementById('textvalue_'+id).value;
	document.forms['save_text'].elements['id'].value = id;
	document.forms['save_text'].elements['text'].value = text;
	document.forms['save_text'].submit();
}