function validar(){
if (document.form1.Nome.value=="" || document.form1.Nome.value==null){
			alert('Preencha o campo Nome');
			document.form1.Nome.focus();
			document.form1.Nome.select();
			return false;
		}
		if (document.form1.Email.value=="" || document.form1.Email.value==null){
			alert('Preencha o campo email');
			document.form1.Email.focus();
			document.form1.Email.select();
			return false;
		}
		var Email = new String(document.form1.Email.value);
		var at = Email.indexOf("@");
		var dot = Email.lastIndexOf(".");	
		d=document.form1;
		if (at <= 0 || dot == -1 || (at+1 >= dot) || (dot+1 == Email.length))
		{alert("Verifique o campo Email.");
			d.Email.focus();
			d.Email.select(); 
			return false;
		}
}
function validaren(){
if (document.form1.Nome.value=="" || document.form1.Nome.value==null){
			alert('Preencha o campo Nome');
			document.form1.Nome.focus();
			document.form1.Nome.select();
			return false;
		}
		if (document.form1.Email.value=="" || document.form1.Email.value==null){
			alert('Preencha o campo email');
			document.form1.Email.focus();
			document.form1.Email.select();
			return false;
		}
		var Email = new String(document.form1.Email.value);
		var at = Email.indexOf("@");
		var dot = Email.lastIndexOf(".");	
		d=document.form1;
		if (at <= 0 || dot == -1 || (at+1 >= dot) || (dot+1 == Email.length))
		{alert("Verifique o campo Email.");
			d.Email.focus();
			d.Email.select(); 
			return false;
		}
}
function validarfr(){
if (document.form1.Nome.value=="" || document.form1.Nome.value==null){
			alert('Preencha o campo Nome');
			document.form1.Nome.focus();
			document.form1.Nome.select();
			return false;
		}
		if (document.form1.Email.value=="" || document.form1.Email.value==null){
			alert('Preencha o campo email');
			document.form1.Email.focus();
			document.form1.Email.select();
			return false;
		}
		var Email = new String(document.form1.Email.value);
		var at = Email.indexOf("@");
		var dot = Email.lastIndexOf(".");	
		d=document.form1;
		if (at <= 0 || dot == -1 || (at+1 >= dot) || (dot+1 == Email.length))
		{alert("Verifique o campo Email.");
			d.Email.focus();
			d.Email.select(); 
			return false;
		}
}
function validares(){
if (document.form1.Nome.value=="" || document.form1.Nome.value==null){
			alert('Preencha o campo Nome');
			document.form1.Nome.focus();
			document.form1.Nome.select();
			return false;
		}
		if (document.form1.Email.value=="" || document.form1.Email.value==null){
			alert('Preencha o campo email');
			document.form1.Email.focus();
			document.form1.Email.select();
			return false;
		}
		var Email = new String(document.form1.Email.value);
		var at = Email.indexOf("@");
		var dot = Email.lastIndexOf(".");	
		d=document.form1;
		if (at <= 0 || dot == -1 || (at+1 >= dot) || (dot+1 == Email.length))
		{alert("Verifique o campo Email.");
			d.Email.focus();
			d.Email.select(); 
			return false;
		}
}
function validaral(){
if (document.form1.Nome.value=="" || document.form1.Nome.value==null){
			alert('Preencha o campo Nome');
			document.form1.Nome.focus();
			document.form1.Nome.select();
			return false;
		}
		if (document.form1.Email.value=="" || document.form1.Email.value==null){
			alert('Preencha o campo email');
			document.form1.Email.focus();
			document.form1.Email.select();
			return false;
		}
		var Email = new String(document.form1.Email.value);
		var at = Email.indexOf("@");
		var dot = Email.lastIndexOf(".");	
		d=document.form1;
		if (at <= 0 || dot == -1 || (at+1 >= dot) || (dot+1 == Email.length))
		{alert("Verifique o campo Email.");
			d.Email.focus();
			d.Email.select(); 
			return false;
		}
}