function AddToCart(quantity, item_num, first) {

	var today = new Date()
	var expires = new Date()
	var value = ""
	var newvalue = ""
	var array_num = 0

	quantity = parseFloat("0"+quantity)
	quantity = parseInt(quantity)
	newvalue = GetCurrentQuantity(item_num)
	document.PForm[item_num-first].value = quantity
	if (newvalue == null)
		newvalue = ""
	if (newvalue.length > 2750)
		alert("\nToo many items in order! \nPlease send this order and begin on a new one.")
	else if (quantity < 1)
		alert("\nSie müssen eine Stückzahl eingeben.")
	else {
		expires.setTime(today.getTime() + 1000*60*60*24) 
		index = item_num*5  // 5 fields per item in array
		array_num = index + 1 // name is second field 
		value = "&1" + Ksida + item_num + "&2" + quantity
		whatitem = data[array_num] 
		newvalue += value
		setCookie("ol_ess", newvalue, expires)
		alert("Lege in Warenkorb:\n"+quantity+" * "+whatitem)
	}

}

function GetCurrentQuantity(item) {

   var value = getCookie("ol_ess")
	if (value != null) {
		if (value.indexOf(Ksida+item) != -1) {
			a = value.indexOf(Ksida+item,0)
			b = value.indexOf("&1",a)
			c = value.length
			a = a-2
			if (b == -1)
				b = c
			d = value.substring(0,a)
			e = value.substring(a,b)
			f = value.substring(b,c)
			value = d+f
		}
	}
	return value

}

function UpdatePage(first, last) {

   var value = getCookie("ol_ess")
   for (i = 0; i < last-first+1; i++) //clear input fields 
     if (document.PForm[i].value) document.PForm[i].value = ""
   if (value != null) { 
      b = c = 0
      while (c < value.length) {
         // Get Item Number
         a = value.indexOf(Ksida, b)
         b = value.indexOf("&2", a+1)
         item_num = value.substring(a+2, b)
         // Get Quantity
         c = value.indexOf("&1", b+1)
         if (c == -1) c = value.length
         quantity = value.substring(b+2, c) 
         if ((item_num < first) || (item_num > last)) continue
         document.PForm[item_num-first].value = quantity
      }
   }

}