function change_class(myObject, myClass)
{
	myObject.className = myClass;
}

function clear_field(myObject)
{
	if(myObject.value == 'Enter a name, keyword, date...')
	{
		myObject.value = '';
	}
}

function info_popup(url)
{
	x = 700;
	y = 700;
	sx = screen.availWidth;
	sy = screen.availHeight;

	Popup = open(url,'Info','width='+x+',height='+y+',scrollbars=1');

	x = sx/2 - x/2;
	y = sy/2 - y/2;
	Popup.moveTo(x,y);
	Popup.focus();
}

function help_popup(url)
{
	x = 700;
	y = 600;
	sx = screen.availWidth;
	sy = screen.availHeight;

	Popup = open(url,'Help','width='+x+',height='+y+',scrollbars=1');

	x = sx/2 - x/2;
	y = sy/2 - y/2;
	Popup.moveTo(x,y);
	Popup.focus();
}