function ChangeSize(number,number) 
{ 
if (document.all) { 
element = document.all['entrada'];
} else { 
element = document.getElementById('entrada'); 
} 
var startSize = 1; 
var rateSize = 0.90; 
var numRate = 3; 
var startSizeLine = 1.30;
var rateSizeLine = 0.10; 
var numRateLine = 3; 
var strActual = element.style.fontSize; 
var strLineActual = element.style.lineHeight; 
var intActual = parseInt(strActual.substring(0, strActual.indexOf("em"))); 
var intLineActual = parseInt(strLineActual.substring(0, strLineActual.indexOf("em"))); 
intActual += number; intLineActual += number; 
if (intActual < (startSize + ( (numRate + 1) * rateSize) ) && intActual > startSize-1){ element.style.fontSize = intActual + "em"; } 
if (intLineActual < (startSizeLine + ( (numRateLine + 1) * rateSizeLine) ) && intLineActual > startSizeLine-1){ element.style.lineHeight = intLineActual + "em"; } 
} 

function normalSize()
{
if (document.all) { 
	element = document.all['entrada'];
} else { 
	element = document.getElementById('entrada'); 
} 
var strActual = element.style.fontSize;
var strLineActual = element.style.lineHeight;
var intActual = 1;
var intLineActual = 1.30; 

element.style.fontSize = intActual + "em"; 
element.style.lineHeight = intLineActual + "em"; 
}