function linuxstart()
{
	parent.content.getDIVs('linux','nw','sp3');
}

function nwstart()
{
	parent.content.getDIVs('nw','linux','sp3');
}


function sp3start()
{
	parent.content.getDIVs('sp3','nw','linux');
}


function getDIVs (prefixShow, prefixHide, otherHide)
{	
	var divs = document.getElementsByTagName("DIV");
	if (divs != null) 
	{
		var count = divs.length;

		for(i=0; i<count; i++)
		{
			var div1;
			var idName;

			div1 = divs[i];
			idName = div1.getAttribute("id");
							//&& idName.lengh>0
			if(idName != null)		
			{
				if(idName.indexOf(prefixShow)==0)
				{
					//show this one
					div1.style.display = "block";
				}	
				if(idName.indexOf(prefixHide)==0)
				{
					//hide this one
					div1.style.display = "none";
				}
				if(idName.indexOf(otherHide)==0)
				{
					//hide this one
					div1.style.display = "none";
				}
			}
		}
	}
}