// $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');

// On Sale :: alteredcart.com //

function onsale_calculate_product_discount(price){



if (typeof(discount_per_amount) != 'undefined' && discount_per_amount > 0)

price = price_format((price/100)*(100-discount_per_amount));



if (typeof(discount_per_amount) != 'undefined' && discount_abs_amount > 0)

price = price_format(price - discount_abs_amount);



return price;



}

// END On Sale :: alteredcart.com //



/*

	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 />");
		
	//BCSE Added for preorder/backorder variants
	if(variantid)
		set_pb_text(variantid);



	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;

}



//netvision start

function rebuildOptions(classid)

{

	/* Find variant */

    classid=parseInt(classid);



    if (getPOValue(classid)=="")

    {

        document.getElementById('po'+classid).options.length=0;

//        document.getElementById('po'+classid).options[document.getElementById('po'+classid).options.length]=new Option("Select " + names[classid]['class_name'],'');



       //add all options

		for (var x in variants) {



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

				continue;



			variantid = x;



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

				if (parseInt(c)==parseInt(classid))

    	        {

        	       var bexist=false;



            	   opt=variants[x][1][c];



                   if (names[c]['options'][opt]!="" && names[c]['options'][opt]!=undefined)

                   {

                     if (names[c]['display'][opt]!="N")

                     {

		               for (i=0; i < document.getElementById('po'+classid).options.length; i++)

    		           {

        		          if (document.getElementById('po'+classid).options[i].value==opt)

            		      {

                		     bexist=true;

                    		 break;

                          }

	                   }



	       	           if (!bexist)

    	        	   {

			            	document.getElementById('po'+c).options[document.getElementById('po'+c).options.length]=new Option(names[c]['options'][opt],opt,false,false);

                       }

                     }

	               }

			    }

            }

        }



       return;

    }



    var viable_variants=[];



	for (var x in variants) {



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



			continue;





		variantid = x;



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

			if (parseInt(c)==parseInt(classid) && (getPOValue(classid) == variants[x][1][c])) {

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

               if (vavail > 0)

               {

	               viable_variants[variantid] = variants[variantid];

               }



			}



		}

    }



        //populate dropdowns



    //store the selected option in the dropdown

    var seloptions=[];



	for (var x in viable_variants) {

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

			continue;



		variantid = x;



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

            if (c!=classid)

            {

               if (document.getElementById('po'+c).options.length > 1)

	               seloptions[c]=getPOValue(c);



               document.getElementById('po'+c).options.length=0;

//               document.getElementById('po'+c).options[document.getElementById('po'+c).options.length]=new Option("Select " + names[c]['class_name'],'');



            }

        }

    }



	for (var x in viable_variants) {

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



			continue;





		variantid = x;



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

	            if (c!=classid)

	            {

	                   opt=viable_variants[x][1][c];



                       if (seloptions[c]==opt && seloptions[c]!='')

                          bselected=true;

                       else

                          bselected=false;



		               document.getElementById('po'+c).options[document.getElementById('po'+c).options.length]=new Option(names[c]['options'][opt],opt,false,bselected);

	            }

        }

    }



}

//netvision end