function hide(k1,k2)
{
var p=document.getElementById(k1).style.display;
if (p=='')
{
	document.getElementById(k1).style.display="none";
	document.getElementById(k2).title="open";
}
else
{
	document.getElementById(k1).style.display="";
	document.getElementById(k2).title="close";
}
}