//PEGA RESOLUÇÃO DA TELA
var telax = screen.width;
var telay = screen.height;
//FIM RESOLUÇÃO

var IE = document.all?true:false
if (!IE) document.captureEvents(Event.MOUSEMOVE)
document.onmousemove = getMouseXY;
var tempX = 0
var tempY = 0

function abre_imagem(id){
//PEGA MOUSE POSITIOM
  if (IE) {
    tempX = event.clientX + document.body.scrollLeft
    tempY = event.clientY + document.body.scrollTop
  } else {
    tempX = e.pageX
    tempY = e.pageY
  }  
  if (tempX < 0){tempX = 0}
  if (tempY < 0){tempY = 0}  
//FIM PEGA MOUSE
	divis = document.getElementById('interna');
	img_w = document.getElementById('grande').width;
	img_h = document.getElementById('grande').height;
	posX = tempX+img_w;
	posY = tempY+img_h;
	if(posX>=telax){
		document.getElementById('interna').style.left = (tempX-img_w);
		document.getElementById('interna').style.top = tempY;
	}else if(posX>=telay){
		document.getElementById('interna').style.top = tempY;
		document.getElementById('interna').style.left = (tempX-img_w);
	}else{
		document.getElementById('interna').style.left = tempX;
		document.getElementById('interna').style.top = tempY;
	}
	if(divis.style.visibility=='visible'){
		divis.style.visibility='hidden';
	}else{
		divis.style.visibility='visible';
		document.getElementById('grande').src = document.getElementById(id).src;
	}
}