/*********************************
http://ypslideoutmenus.sourceforge.net/
*********************************/

ypSlideOutMenu.Registry = [];
ypSlideOutMenu.aniLen = 250;
ypSlideOutMenu.hideDelay = 1000;
ypSlideOutMenu.minCPUResolution = 10;

function ypSlideOutMenu(id,_2,_3,_4,_5,_6) {
	this.ie = document.all ? 1 : 0;
	this.ns4 = document.layers ? 1 : 0;
	this.dom = document.getElementById ? 1 : 0;
	this.css = "";
	if (this.ie || this.ns4 || this.dom) {
		this.id = id;
		this.dir = _2;
		this.orientation = _2 == "left" || _2 == "right" ? "h" : "v";
		this.dirType = _2 == "right" || _2 == "down" ? "-" : "+";
		this.dim = this.orientation == "h" ? _5 : _6;
		this.hideTimer = false;
		this.aniTimer = false;
		this.open = false;
		this.over = false;
		this.startTime = 0;
		this.gRef = "ypSlideOutMenu_" + id;
		eval(this.gRef + "=this");
		ypSlideOutMenu.Registry[id] = this;
		var d = document;
		var _8 = "";
		_8 += "#" + this.id + "Container{visibility:hidden;";
		_8 += "overflow:hidden;z-index:10000;}";
		_8 += "#" + this.id + "Container,#" + this.id + "Content{position:absolute;";
		_8 += "width:" + _5 + "px;";
		_8 += "height:" + _6 + "px;";
		_8 += "clip:rect(0 " + _5 + " " + _6 + " 0);";
		_8 += "}";
		this.css = _8;
		this.load();
	}
}

ypSlideOutMenu.writeCSS = function() {
	document.writeln("<style type=\"text/css\">");
	for(var id in ypSlideOutMenu.Registry) {
		document.writeln(ypSlideOutMenu.Registry[id].css);
	}
	document.writeln("</style>");
};

ypSlideOutMenu.prototype.load = function() {
	var d = document;
	var _10 = this.id + "Container";
	var _11 = this.id + "Content";
	var _12 = this.dom ? d.getElementById(_10) : this.ie ? d.all[_10] : d.layers[_10];
	if(_12) {
		var _13 = this.ns4 ? _12.layers[_11] : this.ie ? d.all[_11] : d.getElementById(_11);
	}
	var _14;
	if (!_12 || !_13) {
		window.setTimeout(this.gRef + ".load()", 100);
	} else {
		this.container = _12;
		this.menu = _13;
		this.style = this.ns4 ? this.menu : this.menu.style;
		this.homePos = eval("0" + this.dirType + this.dim);
		this.outPos = 0;
		this.accelConst = (this.outPos - this.homePos) / ypSlideOutMenu.aniLen / ypSlideOutMenu.aniLen;
		if (this.ns4) {
			this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		}
		this.menu.onmouseover = new Function("ypSlideOutMenu.showMenu('" + this.id + "')");
		this.menu.onmouseout = new Function("ypSlideOutMenu.hideMenu('" + this.id + "')");
		this.endSlide();
	}
};

ypSlideOutMenu.showMenu = function(id) {
	var reg = ypSlideOutMenu.Registry;
	var obj = ypSlideOutMenu.Registry[id];
	if (obj.container) {
		obj.over = true;
		for(menu in reg) {
			if (id != menu) {
				ypSlideOutMenu.hide(menu);
			}
		}
		if (obj.hideTimer) {
			reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer);
		}
		if (!obj.open && !obj.aniTimer) {
			reg[id].startSlide(true);
		}
	}
};

ypSlideOutMenu.hideMenu = function(id) {
	var obj = ypSlideOutMenu.Registry[id];
	if (obj.container) {
		if (obj.hideTimer) {
			window.clearTimeout(obj.hideTimer);
		}
		obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
	}
};

ypSlideOutMenu.hideAll = function() {
	var reg = ypSlideOutMenu.Registry;
	for (menu in reg) {
		ypSlideOutMenu.hide(menu);
		if (menu.hideTimer) {
			window.clearTimeout(menu.hideTimer);
		}
	}
};

ypSlideOutMenu.hide = function(id) {
	var obj = ypSlideOutMenu.Registry[id];
	obj.over = false;
	if (obj.hideTimer) {
		window.clearTimeout(obj.hideTimer);
	}
	obj.hideTimer = 0;
	if (obj.open && !obj.aniTimer) {
		obj.startSlide(false);
	}
};

ypSlideOutMenu.prototype.startSlide = function(_21) {
	this[_21 ? "onactivate" : "ondeactivate"]();
	this.open = _21;
	if (_21) {
		this.setVisibility(true);
	}
	this.startTime = (new Date()).getTime();
	this.aniTimer = window.setInterval(this.gRef + ".slide()", ypSlideOutMenu.minCPUResolution);
};

ypSlideOutMenu.prototype.slide = function() {
	var _22 = (new Date()).getTime() - this.startTime;
	if (_22 > ypSlideOutMenu.aniLen) {
		this.endSlide();
	} else {
		var d = Math.round(Math.pow(ypSlideOutMenu.aniLen - _22, 2) * this.accelConst);
		if (this.open && this.dirType == "-") {
			d = -d;
		} else {
			if (this.open && this.dirType == "+") {
				d = -d;
			} else {
				if (!this.open && this.dirType == "-") {
					d = -this.dim + d;
				} else {
					d = this.dim + d;
				}
			}
		}
		this.moveTo(d);
	}
};

ypSlideOutMenu.prototype.endSlide = function() {
	this.aniTimer = window.clearTimeout(this.aniTimer);
	this.moveTo(this.open ? this.outPos : this.homePos);
	if (!this.open) {
		this.setVisibility(false);
	}
	if ((this.open && !this.over) || (!this.open && this.over)) {
		this.startSlide(this.over);
	}
};

ypSlideOutMenu.prototype.setVisibility = function(_24) {
	var s = this.ns4 ? this.container : this.container.style;
	s.visibility = _24 ? "visible" : "hidden";
};

ypSlideOutMenu.prototype.moveTo = function(p) {
	this.style[this.orientation == "h" ? "left" : "top"] = this.ns4 ? p : p + "px";
};

ypSlideOutMenu.prototype.getPos = function(c) {
	return parseInt(this.style[c]);
};

ypSlideOutMenu.prototype.onactivate=function() {};

ypSlideOutMenu.prototype.ondeactivate=function() {};

/**************
Menu construction
***************/
var menus = [
	// id, orientation, left, top, width, height
	new ypSlideOutMenu("menu1", "right", 127, 68, 200, 150),
	new ypSlideOutMenu("menu2", "down", 208, 68, 200, 200),
	new ypSlideOutMenu("menu3", "down", 273, 68, 200, 200),
	new ypSlideOutMenu("menu4", "down", 354, 68, 200, 200),
	new ypSlideOutMenu("menu5", "down", 421, 68, 200, 200),
	new ypSlideOutMenu("menu6", "down", 471, 68, 200, 200),
	new ypSlideOutMenu("menu7", "down", 572, 68, 200, 200)
]

for (var i = 0; i < menus.length; i++) {
	menus[i].onactivate = new Function("document.getElementById('act" + i + "').className='active';");
	menus[i].ondeactivate = new Function("document.getElementById('act" + i + "').className='';");
};

ypSlideOutMenu.writeCSS();

<!-- Termina aqui o Script -->

function valida_login() {
	if ( document.getElementById('codigo_acesso').value == "" ) {
		alert("O campo LOGIN deve ser preenchido!");
		document.getElementById('codigo_acesso').focus();
		return false;
	}
	
	return true;
}

function valida_contato() {
	if ( document.getElementById('nome').value == "" ) {
		alert("O campo Nome deve ser preenchido!");
		document.getElementById('nome').focus();
		return false;
	}
	
	if ( document.getElementById('email').value == "" ) {
		alert("O campo E-MAIL deve ser preenchido!");
		document.getElementById('email').focus();
		return false;
	}
	
	if ( document.getElementById('email').value != "" ) {
		if ( !valida_email(document.getElementById('email')) ) {
			return false;
		}
	}
	
	if ( document.getElementById('mensagem').value == "" ) {
		alert("O campo MENSAGEM deve ser preenchido!");
		document.getElementById('mensagem').focus();
		return false;
	}
	
	return true;
}

//Função responsável pela validação de endereços de e-mail
function valida_email(campo_email) {
	if ( campo_email.value != '' ) {
		//Expressao Regular utilizada para validar o endereco de email
		var ExpReg = /^[a-zA-Z0-9_\.-]{2,}@([A-Za-z0-9_-]{2,}\.)+[A-Za-z]{2,4}$/;
		if ( !ExpReg.test(campo_email.value) ) {
			alert("E-MAIL inválido!");
			campo_email.focus();
			return false;
		}
		return true;
	}
}