function clearText(field){
    if (field.defaultValue == field.value) field.value = '';
    else if (field.value == '') field.value = field.defaultValue;
}


function validateZIP(field) { // Original:  Brian Swalwell http://javascript.internet.com
  var valid = "0123456789-";
  var hyphencount = 0;

  if (field.length!=5) {
    alert("Please enter a valid 5-digit zip code.");
    return false;
  }
  for (var i=0; i < field.length; i++) {
    temp = "" + field.substring(i, i+1);
    if (temp == "-") hyphencount++;
    if (valid.indexOf(temp) == "-1") {
      alert("Invalid characters in your zip code.  Please try again.");
      return false;
    } 
    if ((hyphencount > 1) || ((field.length==10) && ""+field.charAt(5)!="-")) {
      alert("The hyphen character should be used with a properly formatted 5 digit+four zip code, like '12345-6789'.   Please try again.");
      return false;
    }
  }
  trackClick('/find-test-center/'+field);
  return true;
}


function trackClick(path) {
    try {
        pageTracker._trackPageview(path);
    } catch(err) {}
    return true;
}



function lightbox(action) {	
	lb = $('#lightbox');
	if(action == 'close') {
		try { lightbox_tinymce('remove'); } catch(err) {}
		lb.hide();
		$('#lightbox-overlay').hide();
		$('#lightbox-inner').html('');
		$('#content').animate({opacity: 1});
	} else {
		lb.show();
		$('#content').animate({opacity: .2});
		$('#lightbox-overlay').show();
    $('#lightbox-content').css('position', 'absolute');
    $('#lightbox-content').css('top', $(window).scrollTop() + "px");
    $('#lightbox-content').css('left',  (($(window).width() - $('#lightbox-content').width()) / 2) + "px");
		try { lightbox_tinymce('add'); } catch(err) {}
	}
}




//Open offsite links in new window script- http://www.dynamicdrive.com/
//Created: August 28th, 2007'

var ddwindowlinks={
//1)Enter domains to be EXCLUDED from opening in new window:
excludedomains: ["blueboxgrid.com", "itsyoursexlife.com"],

//2) Target for links that should open in a new window (ie: "_blank", "secwin" etc):
linktarget: "_blank",

//3) Specify operating mode ("auto" or "manual"):
mode: "auto",

//4) If mode is "manual", customize checkbox HTML to show to users (Preserve id attribute):
toggleHTML: '<form><input type="checkbox" id="targetcheckbox" checked="checked" /><label for="targetcheckbox">Open off-site links in new window?</label></form>',

//5) If mode is "manual", enable user persistence so the state of the checkbox is remembered?
persist: true,

assigntarget:function(){
	var rexcludedomains=new RegExp(this.excludedomains.join("|"), "i")
	var all_links=document.getElementsByTagName("a")
	if (this.mode=="auto" || (this.mode=="manual" && this.togglebox.checked)){
		for (var i=0; i<=(all_links.length-1); i++){
			if (all_links[i].hostname.search(rexcludedomains)==-1 && all_links[i].href.indexOf("http:")!=-1)
				all_links[i].target=ddwindowlinks.linktarget
		}
	}
	else{
		for (var i=0; i<=(all_links.length-1); i++)
			all_links[i].target=""
	}
	if (this.mode=="manual" && this.persist)
		this.setCookie("dlinktarget", (this.togglebox.checked)? "yes" : "no", 30) //remember user setting for 30 days (set to -1 then reload page to erase cookie)
},

init:function(){
	if (document.getElementById && this.mode=="manual"){
		document.write(this.toggleHTML)
		this.togglebox=document.getElementById("targetcheckbox")
		this.togglebox.onclick=function(){ddwindowlinks.assigntarget()}
		if (this.persist && this.getCookie("dlinktarget")!="")
			this.togglebox.checked=(this.getCookie("dlinktarget")=="yes")? true : false
	}
	if (window.addEventListener)
		window.addEventListener("load", function(){ddwindowlinks.assigntarget()}, false)
	else if (window.attachEvent)
		window.attachEvent("onload", function(){ddwindowlinks.assigntarget()})
},

getCookie:function(Name){
	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
	if (document.cookie.match(re)) //if cookie found
		return document.cookie.match(re)[0].split("=")[1] //return its value
	return ""
},

setCookie:function(name, value, days){
	var expireDate = new Date()
	//set "expstring" to either an explicit date (past or future)
		var expstring=expireDate.setDate(expireDate.getDate()+parseInt(days))
		document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/"
}

}

ddwindowlinks.init()