//VALIDA SE OS CAMPOS ESTAO PREENCHIDOS
   function getValues() {
		var num_elements = document.forms[0].length;
		var campos;
		var camposEmbranco = "";
		
		for(i=0; i < num_elements ;i ++){
			var tipo = document.forms[0].elements[i].type;

			if ( (tipo == 'text') || (tipo == 'textarea') || (tipo == 'password' ) || (tipo == 'select-one') || (tipo == 'file') ){
				var value = document.forms[0].elements[i].value;
				if (value == ""){
					var campo = document.forms[0].elements[i].name;
					if (campo.indexOf("W") < 0 ){
						campos = campo.split("_");
						camposEmbranco = camposEmbranco +"-  "+ campos[1] + "\n";
					}
				}
			
			}
		}
	
		if (camposEmbranco != ""){
			alert("Campo(s) em branco: \n\n" + camposEmbranco);	
			return false;
		}
	}
	
	
	function openWindow(url,w,h){
	   window.open (url,"","toolbar=yes,location=yes,directories=yes,menubar=yes,scrollbars=yes,resizable=yes,width="+w+",height="+h+",left=30,top=30");
	}
	
	function openWindow2(url,w,h){
		LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
		TopPosition = (screen.height) ? (screen.height-h)/2 : 0;

		
	   window.open (url,"","toolbar=no,location=no,directories=no,menubar=no,scrollbars=no,resizable=no,width="+w+",height="+h+",left="+LeftPosition+",top="+TopPosition+"");
	}
	
	function checkNewsletter(checkSelecionado){
		if(checkSelecionado == 'chk_assinar'){
			document.getElementById('chk_remover').checked = false;
		}else{
			document.getElementById('chk_assinar').checked = false;
			
		}
	}
	
	
	function isValidEmail(email){
		var er = /^[a-zA-Z0-9][a-zA-Z0-9\._-]+@([a-zA-Z0-9\._-]+\.)[a-zA-Z-0-9]{2}/;
          
         if(er.exec(email)){
             return true;
         } else {
             return false;
         }
    }