var bV = parseInt(navigator.appVersion);
    NS4 = (document.layers) ? true : false;
    IE4 = ((document.all) && (bV >= 4)) ? true : false;
    ver4 = (NS4 || IE4) ? true : false;

    if (navigator.userAgent.indexOf("Mac") != -1)
    {
    	if (navigator.userAgent.indexOf("Netscape6") != -1)
    	{
    	 	// netscape 6 Mac
            document.write('<link rel="stylesheet" href="/ssi/styles_sm.css">');
            document.write('<\/link>');    	 	
    	}
    	else
    	{
	        if(NS4)
	        {
	        
	            document.write('<link rel="stylesheet" href="/ssi/styles_sm.css">');
	            document.write('<\/link>');
	        }
	        else if (IE4)
	        {
	            document.write('<link rel="stylesheet" href="/ssi/styles_lrg.css">');
	            document.write('<\/link>');
	        }
	    }
    }
    else if (navigator.userAgent.indexOf("Win") != -1)
    {
    	if (navigator.userAgent.indexOf("Netscape6") != -1)
    	{
    	 	// netscape 6 PC
            document.write('<link rel="stylesheet" href="/ssi/styles_sm.css">');
            document.write('<\/link>');    	 	
    	}
    	else
    	{    
	        if(NS4)
	        {
	            document.write('<link rel="stylesheet" href="/ssi/styles_lrg.css">');
	            document.write('<\/link>');
	        }
	        else if (IE4)
	        {
	            document.write('<link rel="stylesheet" href="/ssi/styles_sm.css">');
	            document.write('<\/link>');
	        }
	    }
    }