function swapImages(img_name, img_src){
	if (document.images){
		document[img_name].src = img_src;
    }
}
function returnImgLoc(name, extension){
	for(i=0;i<navTopLength;i++){
		if(name.slice(0,3)==navTopArray[i].slice(0,3)){
			var nameLeng=name.length;
			var tempNum=name.slice(nameLeng-1,nameLeng);
			var imgLoc='images/nav/subs/'+navSubArray[i][name.slice(nameLeng-1,nameLeng)-1]+''+extension+'.gif';
		}
	}
	return imgLoc;
}
function openPopup(name, height, width){
	var winl = (screen.width - width) / 2;
	var wint = (screen.height - height) / 2;
	var windowName = name.slice(name.indexOf('-')+1, 50);
	var windowLoc = ''+name+'.html';
	var winProps = 'toolbar=no,statusbar=no,location=no,scrollbars=no,resizable=yes,width='+width+',height='+height+',top='+wint+',left='+winl;
	window.open(windowLoc, windowName, winProps);
}
function includeFlash(movieName, width, height, bgcolor, siteSection, highlightSublink){
	var nocache=new Date().getTime();
	urlvars=("?sec="+siteSection+"&lnk="+highlightSublink+"&nc="+nocache)
	document.write ('<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" '
		+'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" WIDTH="'+width+'" HEIGHT="'+height+'" id='+movieName+' ALIGN="">'
		+'<PARAM NAME=movie VALUE="'+movieName+'.swf'+urlvars+'"><PARAM NAME=FlashVars VALUE="movieid='+nocache+'" />'
		+'<PARAM NAME=salign VALUE="LT"><PARAM NAME=quality VALUE=high><PARAM NAME=scale VALUE=noscale><PARAM NAME=bgcolor VALUE='+bgcolor+'>'
		+'<EMBED src="'+movieName+'.swf'+urlvars+'" ' 
		+'FlashVars="movieid='+nocache+'" quality=high scale=noscale bgcolor='+bgcolor+'  WIDTH="'+width+'" HEIGHT="'+height+'" NAME='+movieName+' SALIGN="LT"'
		+'TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED></OBJECT>')
}
function getQueryVariable(variable) {
  	var query = window.location.search.substring(1);
  	if(query == "") return null;
  	var vars = query.split("&");
  	for (var i=0;i<vars.length;i++) {
 		var pair = vars[i].split("=");
   		if (pair[0] == variable) {
      		return pair[1];
		}
	}
}
function open(img){
	document.location="gallery.php?img="+img;
}

/**********************************************************************
 section 1 - Email update form validation
 **********************************************************************/
function validateEmailUpdate() {
	error_string="";				
	if (document.emailupdate.email.value==""){
		error_string = "Please provide an email address.";
		document.emailupdate.email.focus();
	} else if (document.emailupdate.email.value.indexOf("@")==-1 || document.emailupdate.email.value.indexOf(".")==-1){
		error_string = "Please provide a valid email address.";
		document.emailupdate.email.focus();
	}
    if (error_string!=""){
		alert(error_string);
		return false;
 	}else{
		return true;
	}
}