Quantity box with plus and minus buttons

[marcianokent 0]

Hello,

 

I am interested in using this contribution

 

http://addons.oscommerce.com/info/6369

 

but this contribution can only be used in the product_info.php page, how do I change this script

 

 

// JavaScript Document

// calculate price based on quantity

function changeQty(change){

var currentQty = parseInt($F('quant')) // Where quant is the id of your quantity input field. Gets value of currentQty field

 

switch (change) {

case 'add':

currentQty += 1

$('quant').value = currentQty

calculate()

break

case 'subtract':

if (currentQty > 1) { // only subtract if qty is greater than zero

currentQty -= 1

$('quant').value = currentQty

calculate()

}

break

case 'field':

if (currentQty > 0) {

window.setTimeout('calculate()', 500)

}

break

}

}

function calculate(){

var currentQty = parseInt($F('quant')) // Where quant is the id of your quantity input field. Gets value of currentQty field

var jsnormalprice = $F('jsnormalprice') // Where jsnormalprice is the id of your hidden base price field. Gets value of base_price field

var jsspecialprice = $F('jsspecialprice') // Where is the id of your hidden base price field. Gets value of base_price field

 

if (currentQty > 0) { // Don't want price to display if zero if customer zeros out quantity

var new_jsnormalprice = jsnormalprice * currentQty // Calculate the price.

var new_jsnormalprice = new_jsnormalprice.toFixed(2) // Only allow 2 decimals. I'll let you add rounding features up or down.

 

var new_jsspecialprice = jsspecialprice * currentQty // Calculate the price.

var new_jsspecialprice = new_jsspecialprice.toFixed(2) // Only allow 2 decimals. I'll let you add rounding features up or down.

 

} else { // set price back to original price

new_jsnormalprice = jsnormalprice

new_jsspecialprice = jsspecialprice

}

 

$('jsnormalpriceshow').update(new_jsnormalprice) // Where jsnormalpriceshow is the id of your span for the echoed product price

$('jsspecialpriceshow').update(new_jsspecialprice) // Where jsspecialpriceshow is the id of your span for the echoed product price

 

}

 

 

 

can be used in product_listing.php page?

 

Maybe someone can help? because I am not a programmer

 

 

Thanks before

Kent

[web-project 12]

can be used in product_listing.php page?

can be done, but you need to put the quantity in array and process it. The above mentioned script is javascript only and don't process the function.