// JavaScript Document


function qty_inc(product_id) {
qty_old = document.getElementById("qty_id" + product_id).value;
qty_new = ++qty_old;
document.getElementById("qty_id" + product_id).value = qty_new;
}

function qty_dec(product_id) {
qty_old = document.getElementById("qty_id" + product_id).value;
	if (qty_old >= 2) {
		qty_new = --qty_old;
		document.getElementById("qty_id" + product_id).value = qty_new;	
	} else {
	return false;
}

}

function submit_form(element)
{
  document.getElementById(element).submit();
}


function order_add(product_id) {
	product_qty = document.getElementById("qty_id" + product_id).value;
    self.location = "order.php?action=add&id=" + product_id + "&qty=" + product_qty;
}

function order_cancel() {
    self.location = "order.php";
}

function UpdateShipping() {
	shipping_method = document.getElementById("shipping_method").value;
	self.location = "order.php?action=shipping_" + shipping_method;
	
}

function SimpleSwap(el,which){
  el.src=el.getAttribute(which || "origsrc");
}

function SimpleSwapSetup(){
  var x = document.getElementsByTagName("img");
  for (var i=0;i<x.length;i++){
    var oversrc = x[i].getAttribute("oversrc");
    if (!oversrc) continue;
      
    // preload image
    // comment the next two lines to disable image pre-loading
    x[i].oversrc_img = new Image();
    x[i].oversrc_img.src=oversrc;
    // set event handlers
    x[i].onmouseover = new Function("SimpleSwap(this,'oversrc');");
    x[i].onmouseout = new Function("SimpleSwap(this);");
    // save original src
    x[i].setAttribute("origsrc",x[i].src);
  }
}

var PreSimpleSwapOnload =(window.onload)? window.onload : function(){};
window.onload = function(){PreSimpleSwapOnload(); SimpleSwapSetup();}