function show(id){
	document.getElementById(id).style.visibility = 'visible';
	document.getElementById(id).style.position ='static';
}
function hide(id){	
	document.getElementById(id).style.visibility = 'hidden';
	document.getElementById(id).style.position ='absolute';	
	document.getElementById(id).style.left = "-1000px";
	document.getElementById(id).style.top = "-1000px";
}
function getElem(id){
	return document.getElementById(id);
}