// $Id: func.js,v 1.16.2.17 2007/09/25 13:23:12 ferz Exp $



var current_taxes = [];

var product_thumbnail = document.getElementById('product_thumbnail');

var availObj = document.getElementById('product_avail');



/*

Rebuild page if some options is changed

*/

function check_options() {

var local_taxes = [];

var is_rebuild_wholesale = false;

var variantid = false;



for (var t in taxes)

local_taxes[t] = taxes[t][0];

price = default_price;



/* Find variant */

for (var x in variants) {

if (variants[x][1].length == 0)

continue;



variantid = x;

for (var c in variants[x][1]) {

if (getPOValue(c) != variants[x][1][c]) {

variantid = false;

break;

}

}



if (variantid)

break;

}



/* If variant found ... */

if (variantid) {

price = variants[variantid][0][0];

orig_price = variants[variantid][0][4];

avail = variants[variantid][0][1];



/* Get variant wholesale prices */

if (variants[variantid][3]) {

product_wholesale = [];

for (var t in variants[variantid][3]) {

var _tmp = modi_price(variants[variantid][3][t][2], cloneObject(variants[variantid][3][t][3]), variants[variantid][3][t][4]);

product_wholesale[t] = [

variants[variantid][3][t][0], 

variants[variantid][3][t][1], 

_tmp[0],

[]

];



/* Get variant wholesale taxes */

for (var c in _tmp[1]) {

product_wholesale[t][3][c] = _tmp[1][c];

}

}

is_rebuild_wholesale = true;

}



/* Get variant taxes */

for (var t in local_taxes) {

if (variants[variantid][2][t])

local_taxes[t] = parseFloat(variants[variantid][2][t]);

}



if (!product_thumbnail)

product_thumbnail = document.getElementById('product_thumbnail');



/* Change product thumbnail */

if (product_thumbnail) {

if (variants[variantid][0][2].src && variants[variantid][0][2].width > 0 && variants[variantid][0][2].height > 0) {

if (product_thumbnail.src != variants[variantid][0][2].src) {

product_thumbnail.src = variants[variantid][0][2].src;

product_thumbnail.width = variants[variantid][0][2].width;

product_thumbnail.height = variants[variantid][0][2].height;

}

} else if (document.getElementById('product_thumbnail').src != product_image.src) {

product_thumbnail.src = product_image.src;

if (product_image.width > 0 && product_image.height > 0) {

product_thumbnail.width = product_image.width;

product_thumbnail.height = product_image.height;

}

}

}



/* Change product weight */

if (document.getElementById('product_weight'))

document.getElementById('product_weight').innerHTML = price_format(variants[variantid][0][3]);

if (document.getElementById('product_weight_box'))

document.getElementById('product_weight_box').style.display = parseFloat(variants[variantid][0][3]) > 0 ? "" : "none";



/* Change product code */

if (document.getElementById('product_code'))

document.getElementById('product_code').innerHTML = variants[variantid][0][5];



}



if (pconf_price > 0)

price = pconf_price;



/* Find modifiers */

var _tmp = modi_price(price, local_taxes, orig_price);

price = _tmp[0];

local_taxes = _tmp[1];

if (!variantid) {

product_wholesale = [];

for (var t in _product_wholesale) {

_tmp = modi_price(_product_wholesale[t][2], _product_wholesale[t][3].slice(0), _product_wholesale[t][4]);

product_wholesale[t] = [

_product_wholesale[t][0],

_product_wholesale[t][1],

_tmp[0],

_tmp[1]

];

}

is_rebuild_wholesale = true;

}



/* Update taxes */

for (var t in local_taxes) {

if (document.getElementById('tax_'+t)) {

document.getElementById('tax_'+t).innerHTML = currency_symbol+price_format(local_taxes[t] < 0 ? 0 : local_taxes[t]);

}

current_taxes[t] = local_taxes[t];

}



if (is_rebuild_wholesale)

rebuild_wholesale();



/* Update form elements */

/* Update price */

if (document.getElementById('product_price'))

document.getElementById('product_price').innerHTML = currency_symbol+price_format(price < 0 ? 0 : price);



/* Update alt. price */

if (alter_currency_rate > 0 && alter_currency_symbol != "" && document.getElementById('product_alt_price')) {

var altPrice = price*alter_currency_rate;

document.getElementById('product_alt_price').innerHTML = "("+alter_currency_symbol+" "+price_format(altPrice < 0 ? 0 : altPrice)+")";

}



/* Update Save % */

if (document.getElementById('save_percent') && document.getElementById('save_percent_box') && list_price > 0 && dynamic_save_money_enabled) {

var save_percent = Math.round(100-(price/list_price)*100);

if (save_percent > 0) {

document.getElementById('save_percent_box').style.display = '';

document.getElementById('save_percent').innerHTML = save_percent;

} else {

document.getElementById('save_percent_box').style.display = 'none';

document.getElementById('save_percent').innerHTML = '0';

}

}



/* Update product quantity */

if (document.getElementById('product_avail_txt')) {

if (avail > 0) {

document.getElementById('product_avail_txt').innerHTML = substitute(txt_items_available, "items", (variantid ? avail : product_avail));

} else {

document.getElementById('product_avail_txt').innerHTML = lbl_no_items_available;

}

}



if ((mq > 0 && avail > mq+min_avail) || is_unlimit)

avail = mq+min_avail-1;



	avail = avail > mq ? mq : avail;



var select_avail = min_avail;

/* Update product quantity selector */

if (!availObj)

availObj = document.getElementById('product_avail');



if (availObj && availObj.tagName.toUpperCase() == 'SELECT') {

if (!isNaN(min_avail) && !isNaN(avail)) {

var first_value = -1;

if (availObj.options[0])

first_value = availObj.options[0].value;



if (first_value == min_avail) {



/* New and old first value in quantities list is equal */

if ((avail-min_avail+1) != availObj.options.length) {

if (availObj.options.length > avail) {

var cnt = availObj.options.length;

for (var x = (avail < 0 ? 0 : avail); x < cnt; x++)

availObj.options[availObj.options.length-1] = null;

} else {

var cnt = availObj.options.length;

for (var x = cnt+1; x <= avail; x++)

availObj.options[cnt++] = new Option(x, x);

}

}

} else {



/* New and old first value in quantities list is differ */

while (availObj.options.length > 0)

availObj.options[0] = null;

var cnt = 0;

for (var x = min_avail; x <= avail; x++)

availObj.options[cnt++] = new Option(x, x);

}

			if (availObj.options.length == 0 || min_avail > avail)

availObj.options[0] = new Option(txt_out_of_stock, 0);

}

select_avail = availObj.options[availObj.selectedIndex].value;

}



check_wholesale(select_avail);



if ((alert_msg == 'Y') && (min_avail > avail))

alert(txt_out_of_stock);



/* Check exceptions */

var ex_flag = check_exceptions();

if (!ex_flag && (alert_msg == 'Y'))

alert(exception_msg);



if (document.getElementById('exception_msg'))

document.getElementById('exception_msg').innerHTML = (ex_flag ? '' : exception_msg_html+"<br /><br />");



return true;

}



/*

Calculate product price with price modificators 

*/

function modi_price(_price, _taxes, _orig_price) {

var return_price = round(_price, 2);



/* List modificators */

for (var x2 in modifiers) {

var value = getPOValue(x2);

if (!value || !modifiers[x2][value])

continue;



/* Get selected option */

var elm = modifiers[x2][value];

return_price += parseFloat(elm[1] == '$' ? elm[0] : (_price*elm[0]/100));



/* Get tax extra charge */

for (var t2 in _taxes) {

if (elm[2][t2]) {

_taxes[t2] += parseFloat(elm[1] == '$' ? elm[2][t2] : (_orig_price*elm[2][t2]/100));

}

}

}



return [return_price, _taxes];

}



/*

Check product options exceptions

*/

function check_exceptions() {

if (!exceptions)

return true;



/* List exceptions */

for (var x in exceptions) {

if (isNaN(x))

continue;



var found = true;

for (var c in exceptions[x]) {

var value = getPOValue(c);

if (!value)

return true;



if (value != exceptions[x][c]) {

found = false;

break;

}

}

if (found)

return false;

}



return true;

}



/*

Rebuild wholesale tables

*/

function rebuild_wholesale() {



var obj = document.getElementById('wl_table');

if (!obj)

return false;



/* Clear wholesale span object if product wholesale prices service array is empty */

if (!product_wholesale || product_wholesale.length == 0) {

obj.innerHTML = "";

return false;

}



/* Display headline */

var str = '';

var i = 0;

for (var x in product_wholesale) {

if (product_wholesale[x][0] == 0)

continue;



if (i == 0)

str += '<br /><table cellpadding="2" cellspacing="2"><tr class="TableHead"><td align="right"><b>'+lbl_quantity+':&nbsp;</b></td>';



str += '<td>'+product_wholesale[x][0];

if (x == product_wholesale.length-1) {

str += '+';

} else if (product_wholesale[x][0] < product_wholesale[x][1]) {

str += '-'+product_wholesale[x][1];

}

str += '&nbsp;'+(product_wholesale[x][0] == 1 ? lbl_item : lbl_items)+'</td>';

i++;

}



if (i == 0)

return false;



/* Display wholesale prices taxes */

var tax_str = '';

if (taxes.length > 0) {

for (var x in taxes) {

if (current_taxes[x] > 0)

tax_str += substitute(lbl_including_tax, 'tax', taxes[x][1])+'<br />';

}

}



/* Display wholesale prices */

str += '</tr><tr bgcolor="#EEEEEE"><td align="right"><b>'+lbl_price+(tax_str.length > 0 ? '*' : '')+':&nbsp;</b></td>';

for (var x in product_wholesale) {

if (product_wholesale[x][0] == 0)

continue;

str += '<td>'+price_format(product_wholesale[x][2] < 0 ? 0 : product_wholesale[x][2])+'</td>';

}



str += '</tr></table>';



if (tax_str.length > 0)

str += '<br /><table><tr><td class="FormButton" valign="top"><b>*'+txt_note+':</b>&nbsp;</td><td nowrap="nowrap" valign="top">'+tax_str+'</td></tr></table>';



str += '<br />';

obj.innerHTML = str;



return true;

}



/*

Display current wholesale price as product price

*/

function check_wholesale(qty) {

if (product_wholesale.length == 0)

return true;



var wl_taxes = current_taxes.slice(0);

var wl_price = price;

var found = false;

for (var x = 0; x < product_wholesale.length; x++) {

if (product_wholesale[x][0] <= qty && (product_wholesale[x][1] >= qty || product_wholesale[x][1] == 0)) {

wl_price = product_wholesale[x][2];

wl_taxes = product_wholesale[x][3].slice(0);

found = true;

}

if (document.getElementById('wp'+x)) {

var wPrice = price-default_price+product_wholesale[x][2];

document.getElementById('wp'+x).innerHTML = currency_symbol+price_format(wPrice < 0 ? 0 : wPrice);

}

}



if (document.getElementById('product_price'))

document.getElementById('product_price').innerHTML = currency_symbol+price_format(wl_price < 0 ? 0 : wl_price);

if (alter_currency_rate > 0 && alter_currency_symbol != "" && document.getElementById('product_alt_price')) {

var altPrice = wl_price*alter_currency_rate;

document.getElementById('product_alt_price').innerHTML = "("+alter_currency_symbol+" "+price_format(altPrice < 0 ? 0 : altPrice)+")";

}



/* Update Save % */

if (document.getElementById('save_percent') && document.getElementById('save_percent_box') && list_price > 0 && dynamic_save_money_enabled) {

var save_percent = Math.round(100-((wl_price < 0 ? 0 : wl_price)/list_price)*100);

if (save_percent > 0) {

document.getElementById('save_percent_box').style.display = '';

document.getElementById('save_percent').innerHTML = save_percent;

} else {

document.getElementById('save_percent_box').style.display = 'none';

document.getElementById('save_percent').innerHTML = '0';

}

}





for (var x in taxes) {

if (document.getElementById('tax_'+x) && wl_taxes[x] && current_taxes[x]) {

document.getElementById('tax_'+x).innerHTML = currency_symbol+price_format(wl_taxes[x] < 0 ? 0 : wl_taxes[x]);

}

}



return true;

}



/*

Get product option value

*/

function getPOValue(c) {

if (!document.getElementById('po'+c) || document.getElementById('po'+c).tagName.toUpperCase() != 'SELECT')

return false;

return document.getElementById('po'+c).options[document.getElementById('po'+c).selectedIndex].value;

}



/*

Get product option object by class name / class id

*/

function product_option(classid) {

if (!isNaN(classid))

return document.getElementById("po"+classid);



if (!names)

return false;



for (var x in names) {

if (names[x]['class_name'] != classid)

continue;

return document.getElementById('po'+x);

}



return false;

}



/*

Get product option value by class name / or class id

*/

function product_option_value(classid) {

var obj = product_option(classid);

if (!obj)

return false;



if (obj.type != 'select-one')

return obj.value;



var classid = parseInt(obj.id.substr(2));

var optionid = parseInt(obj.options[obj.selectedIndex].value);

if (names[classid] && names[classid]['options'][optionid])

return names[classid]['options'][optionid];



return false;

}