var iniWidth = 0, iniHeight = 0;
if( typeof( window.innerWidth ) == 'number' ) {
	//Non-IE
	iniWidth = window.innerWidth;
	iniHeight = window.innerHeight;
} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
	//IE 6+ in 'standards compliant mode'
	iniWidth = document.documentElement.clientWidth;
	iniHeight = document.documentElement.clientHeight;
} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
	//IE 4 compatible
	iniWidth = document.body.clientWidth;
	iniHeight = document.body.clientHeight;
}
if(iniHeight < 775 || iniWidth < 1140){
	reso = 1024;
}else{
	reso = 1280;
}

// JavaScript Document
function red_tela(largura, altura){
	if(reso == 1024){
		if(largura <= 1000){
			document.getElementById('tela').style.width = '1000px';
		} else {
			document.getElementById('tela').style.width = '100%';
		}
		if(altura <= 558){
			document.getElementById('tela').style.height = '558px';
		} else {
			document.getElementById('tela').style.height = '100%';
		}
	}else{
		if(largura <= 1140){
			document.getElementById('tela').style.width = '1140px';
		} else {
			document.getElementById('tela').style.width = '100%';
		}
		if(altura <= 775){
			document.getElementById('tela').style.height = '775px';
		} else {
			document.getElementById('tela').style.height = '100%';
		}	
	}
}
function reda_tela(){
	alertSize();
}
function inicia_tela(){
	alertSize();
}

function alertSize() {

  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  red_tela(myWidth, myHeight);
}