function MM_swapImgRestore() { 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() { 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) { 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() { 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];} }

/// popup window function
function popup(URL,w,h) {

day = new Date();
id = day.getTime();

var width = w;
var height = h;

var left = ((screen.width-width)/2);
var top = ((screen.height-height)/2);

eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top + '');");
}

/// popup window function with name
function wpopup(URL,n,w,h) {

day = new Date();

var name = n;
var width = w;
var height = h;

var left = ((screen.width-width)/2);
var top = ((screen.height-height)/2);

var features = 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top;
    
var popWin = window.open(URL, name, features);
popWin.focus();

}

function popWindow(url, name, features) 
{
    var host = location.hostname;
	window.top.name = "opener";
	var popupWin = window.open( url, name, features );
	
	if ( popupWin && popupWin.opener ) {
		if ( openerUrl )
		{
			popupWin.opener.location = openerUrl;
			popupWin.focus();
		}
	}
}

// return document object by id;
function getobject(obj){
if (document.getElementById)
return document.getElementById(obj)
else if (document.all)
return document.all[obj]
}

// write html to html Object
function writeObject(obj, txt) {
	getobject(obj).innerHTML = txt;
	return false;
}

// set obj class style
function setStyle(obj, className) {		
	if(getobject(obj).className != className) {
	getobject(obj).className = className;
	}
}


function enable_other()
{
	if (document.getElementById('clubs_other_check').checked)
	{
		document.getElementById('clubs_other').disabled = false;
		document.getElementById('clubs_other').focus();
	}
	else
	{
		document.getElementById('clubs_other').disabled = true;
		document.getElementById('clubs_other').value = "";
	}
}


/////
///onKeyPress="return numbersonly(this, event)";
/////

function numbersonly(myfield, e, dec)
{
	var key;
	var keychar;
	if (window.event){
		key = window.event.keyCode;
	}else if (e){
		key = e.which;
	}else{
		return true;
	}
	keychar = String.fromCharCode(key);
	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) ){
		return true;
	}else if ((("+1234567890").indexOf(keychar) > -1)){
		return true;
	}else if (dec && (keychar == ".")){
		myfield.form.elements[dec].focus();
		return false;
	}else{
		return false;
	}
}

///// onKeyUp="numTyped(this.value,p3,'3')"
/// jump phone number fields
function numTyped(current, next,maxlen) {
  var len = current.length;
  if (len==maxlen) {
    next.focus();
  }
}


function checkEmail(email) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email))
	{
		return (true)
	}
	else
	{
		return (false)
	}
}

/// functions for form validation script

function count_checkboxes(element_name)
{ 
	box_checked = 0;
	with (document.form) { 
		for (var i=0; i < elements.length; i++) { 
			if (elements[i].name == element_name)
				if (  elements[i].checked )
				{ 
						box_checked += 1;
				}
		}
	}
	return box_checked;
}