/* ================================================
Drop down controls 
=================================================*/

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

/**********************************************************

 * Hide from email robots                                 *

 **********************************************************/

 

function nospam(user,domain) {

	locationstring = "mailto:" + user + "@" + domain;

	window.location = locationstring;

}

function validateString(field, msg, min, max) {
if (!min) { min = 1 }
if (!max) { max = 65535 }
if (!field.value || field.value.length < min || 
field.value.max > max) {
alert(msg);
field.focus();
field.select();
return false;
}

return true;
}

function validateEmail(email, msg, optional) {
if (!email.value && optional) {
return true;
}
var re_mail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z])+$/;
if (!re_mail.test(email.value)) {
alert(msg);
email.focus();
email.select();
return false;
}
return true;
}

function validateEmailsSame(emaila, emailb, msg) {
if (emaila.value!=emailb.value) {
   alert(msg);
   emailb.focus();
   emailb.select();
   return false;
} 
return true;
}

/**********************************************************
 * External window                                        *
 **********************************************************/

function externalLinks() { 
 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && 
       anchor.getAttribute("rel") == "external") 
     anchor.target = "_blank"; 
 } 
} 
window.onload = externalLinks;

function add_load_event(func) {

	var oldonload = window.onload;

	if (typeof window.onload != 'function') {

		window.onload = func;

	}

	else{

		window.onload = function() {

			oldonload();

			func();

		}

	}

}