function trim(sString){
	while (sString.substring(0,1) == ' ') {
		sString = sString.substring(1, sString.length);
	}

	while (sString.substring(sString.length-1, sString.length) == ' ') {
		sString = sString.substring(0,sString.length-1);
	}

	return sString;
}

function isMail(m) {
	if (!m) return false;
	var reg = new RegExp('^([\.a-zA-Z0-9_-]+)@([\.a-zA-Z0-9_-]){1,}[\.]{1,1}[a-zA-Z]{2,3}$');
	if(!reg.test(m)) return false;
	return true;
}

/* Validação do formulário fale conosco */
function checkFormContato(){
	var form = document.getElementById('frContato');
	if(trim(form.nome.value)==""){
		alert('Campo Nome vazio!');
		form.nome.focus();
		return false;
	}
	if(trim(form.email.value)==""){
		alert('Campo E-Mail vazio!');
		form.email.focus();
		return false;
	}
	else{
		if(!isMail(form.email.value)){
			alert('E-Mail inválido!');
			form.email.focus();
			return false;
		}
	}
	if(trim(form.departamento.value)==""){
		alert('Campo Departamento vazio!');
		form.departamento.focus();
		return false;
	}
	if(trim(form.mensagem.value)==""){
		alert('Campo Mensagem vazio!');
		form.mensagem.focus();
		return false;
	}
}

/* Validação do formulário login */
function checkLogin(){
	var form = document.getElementById('frWebmail');
	if(trim(form._user.value)==""){
		alert('Campo E-Mail vazio!');
		form.f_user.focus();
		return false;
	}
	else{
		if(!isMail(form._user.value)){
			alert('E-Mail inválido!');
			form.f_user.focus();
			return false;
		}
	}
	if(trim(form._pass.value)==""){
		alert('Campo Password vazio!');
		form.f_pass.focus();
		return false;
	}
	
}
/*
new Draggable('janela', 
		{   ghosting:false,
		    
		    snap: function(x,y,draggable) {
				  function constrainX(n, lower, upper) {     
				    //lower = -51;
				    //upper = 240;				                  
					if (n > upper) {
						//$('texto').innerHTML = "U: " + upper;
						return upper;
					}
					else if (n < lower) {
						//$('texto').innerHTML = "L: " + lower;
						return lower;
					}
					else {
						//$('texto').innerHTML = "N: " + n;
						return n-(n%10);
					}
				  }

				  function constrainY(n, lower, upper) {
          //upper = 240;
					//lower = -174;
					if (n > upper) {
						//$('texto').innerHTML = "U: " + upper;
						return upper;
					}
					else if (n < lower) {
						//$('texto').innerHTML = "L: " + lower;
						return lower;
					}
					else {
						//$('texto').innerHTML = "N: " + n;
						return n-(n%10);
					}
				  }
                  element_dimensions = Element.getDimensions(draggable.element);
				  parent_dimensions = Element.getDimensions(draggable.element.parentNode);				  
				  
				  //return[
					//constrain(x, 0, parent_dimensions.width - element_dimensions.width),
					//constrain(y, 0, parent_dimensions.height - element_dimensions.height)];
				  return[
					constrainX(x, 0, parent_dimensions.width - element_dimensions.width),
					constrainY(y, 0, parent_dimensions.height - element_dimensions.height)];
				  }

	    });  
	    
	    Droppables.add( 'area', { 
          accept: 'menu', 
		  hoverclass: 'entraDrop',	
		  
		  greedy: false,	  
		  onHover: function(janela,element,overLap) {  
		   	if (!document.all) {
			    $('janela').addClassName('menuSuperior');	
			    $('janela').removeClassName('menuLateral');	 	
		   	}			 
			 //$('janela').setStyle({border: '2px solid green',color:'red'}); 
			 
          },
		  onDrop: function(janela,element) {  
             dimensionsJ = janela.getDimensions(); 
			 dimensions = element.getDimensions(); 			 
			 //new Effect.MoveBy(janela, 0, dimensions.width - dimensionsJ.width, { duration: 0.70 });
			 
			 //$('texto2').innerHTML = "Dimensao direita: W " + dimensions.width + " - H " + dimensions.height;
			
		  }
		  
      });     
      
      Droppables.add( 'dropArea', { 
          accept: 'menu', 
		  hoverclass: 'entraDrop',		  
		  //onHover: function(janela) {  	
		  onHover: function (drag,drop,opct) { 		  
		   if (!document.all) {
		      $('janela').addClassName('menuLateral');
		      $('janela').removeClassName('menuSuperior');	  
		   }			 
			 
          }
      }); 
*/