function autoClear(obj) {
	if(obj.value==obj.defaultValue) {
		obj.value='';
	}
}
function autoRestore(obj) {
	if(obj.value=='') {
		obj.value=obj.defaultValue; 
	}
}

function validateEmail(e) {
ok = "+1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";
if (e.length == 0) return false;
for(i=0; i < e.length ;i++)
{
	if(ok.indexOf(e.charAt(i))<0){ 
	return (false);
	}	
} 
return true;
re = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
re_two = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
//if (!e.match(re) && e.match(re_two)) 
{
//	return (false);		
} 

}

function validateNewsletterForm(){
	if ( !validateEmail($('email-newsletter')) ) {
		alert("Please enter a valid email address.");
		$('email-newsletter').focus(); 
		return false;
	}
}

function showDiv(a) {
	document.getElementById(a).style.display='block';
	}
function hideDiv(a) {
	document.getElementById(a).style.display='none';
	}


function toggleMenu(el, over)
{
	if (over) {
			Element.addClassName(el, 'over');
	}
	else {
			Element.removeClassName(el, 'over');
	}
}


var Tabs = Class.create();

Tabs.prototype = {

	initialize: function (selectors) {
		this.elements = [];
		var elems = $$(selectors), i, m;
		for (i=0; i<elems.length; i++) {
			if (m = elems[i].className.match(/(^|\s)tab:([^:]+):([^:]+)($|\s)/)) {
				this.addElement({element:elems[i], group:m[2], id:m[3]});
			}
		}
	},

	addElement: function(a) {
		var tab = $(a.element), i = this.elements.length, c;

		tab.tabsId = i;
		tab.style.cursor = 'pointer';
		Event.observe(tab, 'mouseover', this.onMouseOver.bind(this));
		Event.observe(tab, 'mouseout', this.onMouseOut.bind(this));
		Event.observe(tab, 'click', this.onClick.bind(this));

		container = $(a.group+'-'+a.id+'-container');

		if (tab.hasClassName('active')) {
			container.show();
		} else {
			container.hide();
		}

		this.elements[i] = {element:tab, group:a.group, id:a.id, container:container};
	},

	onMouseOver: function(ev) {
		var e = Event.findElement(ev, 'LI');
		e.addClassName('over');
	},

	onMouseOut: function(ev) {
		var e = Event.findElement(ev, 'LI');
		e.removeClassName('over');
	},

	onClick: function(ev) {
		var i, t = this.elements, e = Event.findElement(ev, 'LI');
		for (i in t) if (t[i].group==t[e.tabsId].group && t[i].element.tabsId!=e.tabsId) {
			t[i].element.removeClassName('active');
			t[i].container.hide();
		}
		e.addClassName('active');
		t[e.tabsId].container.show();
	}
}