$(document).ready(function(){

 var fonte = 14;
    var lineHeight = 20;
    
      $("#aumenta_fonte").click(function(){
  		if (fonte<17){
  			fonte = fonte+1;
  			lineHeight = lineHeight+1;
  			$("#aumentaBaixa").css({'font-size' : fonte+'px','line-height' : lineHeight+'px'});
  			$("#textoT").css({'font-size' : fonte+'px','line-height' : lineHeight+'px'});
  			$("#textoT p").css({'font-size' : fonte+'px','line-height' : lineHeight+'px'});
  			
  		}
      });
      
      $("#reduz_fonte").click(function(){
  		if (fonte>9){
  			fonte = fonte-1;
  			lineHeight = lineHeight-1;
  			$("#aumentaBaixa").css({'font-size' : fonte+'px','line-height' : lineHeight+'px'});
  			$("#textoT").css({'font-size' : fonte+'px','line-height' : lineHeight+'px'});
  			$("#textoT p").css({'font-size' : fonte+'px','line-height' : lineHeight+'px'});
  		}
      });

      $("#MsgCount").text("0").css({'font-weight' : 'bold'});

      $("#comentario").keyup(function (event) {
  
    	  $Comentario = $(this).val();

    	  var maxText = 300;

    	  var numChar = $Comentario.length;

    	  $("#MsgCount").text(numChar);

    	  if (numChar < maxText){
    		  
    		  $("#MsgCount");
    	  }
    	  else
    	  {
    		  if ( numChar > maxText)
    		  {
    			  if (event.keyCode != 8)
    			  {
  
    				  $("#MsgCount").text("Excedeu "+numChar).css({'font-weight' : 'bold', 'color' : '#ae1b50'});
    			  }
    		  }
    	  }
      });
      
});