var selected_menu="";

function hide()
{
   divs = document.getElementsByTagName('div');
   for(i=0; i < divs.length; i++)
   {
	var id = divs[i].id;
	if (id.substr(id.length - 5) == "_text")
		divs[i].style.display = "none";
   }
}

function setMain(id)
{
	if ( (selected_menu != id) && (selected_menu != "") )
	{
		document.getElementById(selected_menu+"_menu").className='';
	}
	document.getElementById(id+"_menu").className='active';
	selected_menu = id;


	newMain_text = document.getElementById(id+"_text");
	mainBit_text = document.getElementById('mainbit');

	
	if (mainBit_text.filters)
	{
		if (mainBit_text.filters[0])
		{
			mainBit_text.filters[0].apply();
			mainBit_text.innerHTML = "";
	
			mainBit_text.filters[0].apply();
			mainBit_text.innerHTML = newMain_text.innerHTML;
			mainBit_text.filters[0].play();
		}
		else
		{
			mainBit_text.innerHTML = newMain_text.innerHTML;
	
		}	
	}
	else
	{
		mainBit_text.innerHTML = newMain_text.innerHTML;
	}	
}

function move_in(img_name,img_src) 
{
	document[img_name].src=img_src;
}

function move_out(img_name,img_src) 
{
	document[img_name].src=img_src;
}