var $=function(objectId)
{
	if(document.getElementById&&document.getElementById(objectId))
	{
		return document.getElementById(objectId)
	}
	else if(document.all&&document.all(objectId))
	{
		return document.all(objectId)
	}
	else if(document.layers&&document.layers[objectId])
	{
		return document.layers[objectId];
	}
	else
	{
		return false;
	}
};
function tabTurn(presObj, classon, showdiv)
{
	var pObj = presObj.parentNode;
	var items =pObj.getElementsByTagName('li');
	
	for(var i=0; i<items.length; i++)
	{
		var n = i + 1;
		var cntDiv = $('location_desc_' + n);
		//alert(cntDiv);
		if(items[i] == presObj)
		{
			items[i].className=classon;
			cntDiv.className = showdiv;
		}
		else
		{
			items[i].className='off';
			cntDiv.className = 'undis';
		}
	}
}