function new_window(url,w,h){
	st='top=15, left=20, menubar=0, toolbar=0, location=0, directories=0, status=0, scrollbars=0, resizable=0, width='+w+', height='+h;
	window.open( url,'newwin',st);
}

function showpt(id){
if(document.getElementById(id).style.display=='none')
document.getElementById(id).style.display = 'block';

else
document.getElementById(id).style.display = 'none';

}