function showHide(obj1,obj2)
{
	if(document.getElementById(obj1).className=="hide")
	{
		document.getElementById(obj1).className='show';
		document.getElementById(obj2).innerHTML="collapse";
		return false;
	}
	if(document.getElementById(obj1).className=="show")
	{
		document.getElementById(obj1).className='hide';
		document.getElementById(obj2).innerHTML="expand";
	}
}