function posiciona01(s)
{
	if(document.layers)
		{return document.layers[s];}
	else if(document.all && !document.getElementById)
		{return document.all[s];}
	else
		{return document.getElementById(s);}
}

function posiciona02(s,x,y)
{
	_o = posiciona01(s);
	_o.style.clip = 'rect(0px '+x+'px '+y+'px 0px)';
}