function hidedivs(parentname, divname)
{
	var div = document.getElementById(parentname);	
	for(var i = 0; i < div.childNodes.length; i++)
	{
		if (div.childNodes[i].tagName == "DIV")
		{			
			if (div.childNodes[i].style.display == "block")
			{	
				div.childNodes[i].style.display = "none";
			}
		}
	}
	document.getElementById(divname).style.display = "block";
}
function posttopage(pagename,varname,varvalue)
{			
	document.forms[0].action = pagename + "?" + varname +"=" + varvalue;
	document.forms[0].submit();
	//return true;
}
function getfrompage(parentname)
{
	if (document.getElementById(parentname) != null)
	{	
		var idx = window.location.toString().indexOf('=');		
		var val = window.location.toString().substr(idx + 1);		
		if (idx > 0)
		{	
			//alert(val);
			hidedivs(parentname,val);
		}
	}
}