function setActiveStyleSheet(title) 
{
	var i, a, main;
	
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) 
	{
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) 
		{
			a.disabled = true;
	        	if(a.getAttribute("title") == title) 
				a.disabled = false;    
		}  
	}
}

function getActiveStyleSheet() 
{  
	var i, a;
	
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) 
	{
   	    	if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) 
			return a.getAttribute("title");  }
		return null;
	}