// JavaScript Document
	 function checkform(thisform)
	{
	with (thisform)
		{
		if (Empty(sendername,"Please enter your name.")) {sendername.focus(); return false;};
		if (!isValidEmail(senderemail,"Please enter your email address.")) {senderemail.focus(); return false;}
		if (Empty(recipientname_1,"Please enter a name for at least one recipient.")) {recipientname_1.focus(); return false;};
		if (!isValidEmail(recipientemail_1,"Please enter a valid E-mail address for at least one recipient.")) {recipientemail_1.focus(); return false;}
		}
	}
	function Empty(entered, alertbox){
	with (entered)
		{
		if (value==null || value=="")
			{if (alertbox!="") {alert(alertbox);} return true;}
		else {return false;}
		}
	}

	function isValidEmail(entered, alertbox) {
	with (entered)
		{
		apos=value.indexOf("@"); 
		dotpos=value.lastIndexOf(".");
		lastpos=value.length-1;
		if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2) 
			{if (alertbox) {alert(alertbox);} return false;}
		else 
			{return true;}
		}
	}
	function $() {
		var elements = new Array();
		for (var i = 0; i < arguments.length; i++) {
			var element = arguments[i];
			if (typeof element == 'string')
				element = document.getElementById(element);
			if (arguments.length == 1)
				return element;
			elements.push(element);
		}
		return elements;
	}
	// and now our improved toggler!
	function toggle(obj) {
		var el = $(obj);
		el.style.display = (el.style.display != 'none' ? 'none' : '' );
	}