function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}
function MM_effectAppearFade(targetElement, duration, from, to, toggle)
{
	Spry.Effect.DoFade(targetElement, {duration: duration, from: from, to: to, toggle: toggle});
}
function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function validateEmail(email) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   return reg.test(email);
}
function checkForm(form){
	var valid = true;
	var message = "";
	if(form.name.value.length < 2){
		message += "Please enter a name.\n";
		valid = false;
	}
	if(!validateEmail(form.email.value)){
		message += "Please enter a valid e-mail address.\n";
		valid = false;
	}
	if(!valid){
		alert(message);
	}
	return valid;
}

function checkEmail(email) {

	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email)) {

		return true;

	}else {

		return false;

	}

}
function maxCategorySelect(maxnum){
	var categorynum = document.update_categories['category[]'].length;
	var categories = document.update_categories['category[]'];
	var checkednum = 0;
	for(i=0; i<categorynum; i++){
		var checkbox = categories[i];
		if(checkbox.checked){
			checkednum++;
			if(checkednum > maxnum){
				alert('You may select a maximum of ' + maxnum + ' categories');
				return false;
			}
		}
	}
}

function jumpList(field){
	window.location = field.value;
}
function openSub(topid){
	$('#'+topid+'>ul.subnav').slideDown('fast').show();
	$('#'+topid).hover(function() {  
        }, function(){  
             $('#'+topid+'>ul.subnav').slideUp('slow'); //When the mouse hovers out of the subnav, move it back up  
         });  
	return false;
}
var containers = new Array();
function showHide(id){
	var element = document.getElementById(id);
	if(containers[id]){
		if(containers[id]['display']){
			if(containers[id]['display'] == 'none'){
				element.style.display = 'block';
				containers[id]['display'] = 'block';
			}else{
				element.style.display = 'none';
				containers[id]['display'] = 'none';
			}
		}
	}else{ // default would be hidden, show the item
		element.style.display = 'block';
		containers[id] = new Array();
		containers[id]['display'] = 'block';
	}
}