if ((navigator.userAgent.indexOf("Mac") != -1))
			    document.write("<link rel='stylesheet' href='css/m.css' type='text/css'>")
			if (navigator.userAgent.indexOf('Win') != -1){
				if (navigator.appName.indexOf('Netscape') != -1) {
			        document.write("<link rel='stylesheet' href='css/n.css' type='text/css'>")
			        }
			   else {
			        document.write("<link rel='stylesheet' href='css/i.css' type='text/css'>")
			        }
			    }


 
    var tmpHolder = "";
    
    if(document.images)
    {
        
        
        var home = new Array(2);
		var collated = new Array(2);
		var metal = new Array(2);
		var security = new Array(2);
		var contact = new Array(2);
		var email = new Array(2);
		var help = new Array(2);
        
		
        for(var i = 0; i < 3; i++)
        {
	        home[i] = new Image();
			collated[i] = new Image();
			metal[i] = new Image();
			security[i] = new Image();
			contact[i] = new Image();
			email[i] = new Image();
			help[i] = new Image();
        	
        }
        
    	home[0].src = "images/nav_home_0.gif";
    	home[1].src = "images/nav_home_1.gif";
		home[2].src = "images/nav_home_2.gif";
		collated[0].src = "images/nav_collated_screws_0.gif";
    	collated[1].src = "images/nav_collated_screws_1.gif";
		collated[2].src = "images/nav_collated_screws_2.gif";
		metal[0].src = "images/nav_metal_roofing_0.gif";
    	metal[1].src = "images/nav_metal_roofing_1.gif";
		metal[2].src = "images/nav_metal_roofing_2.gif";
		security[0].src = "images/nav_security_screws_0.gif";
    	security[1].src = "images/nav_security_screws_1.gif";
		security[2].src = "images/nav_security_screws_2.gif";
		contact[0].src = "images/nav_contact_0.gif";
    	contact[1].src = "images/nav_contact_1.gif";
		contact[2].src = "images/nav_contact_2.gif";
		email[0].src = "images/nav_email_0.gif";
    	email[1].src = "images/nav_email_1.gif";
		email[2].src = "images/nav_email_2.gif";
		help[0].src = "images/nav_help_0.gif";
    	help[1].src = "images/nav_help_1.gif";
		help[2].src = "images/nav_help_2.gif";
    	
    }

    function ReplaceOrig(name)
    {
	    if(document.images)
        {
            if(name != tmpHolder)
            {
        		document[name].src = eval(name + "[1].src");
            }
    	}
    }

    function RestoreOrig(name)
    {
    	if(document.images)
        {
            if(name != tmpHolder)
            {
        		document[name].src = eval(name + "[0].src");
            }
	    }
    }



    function changeImage(name)
    {
	    if(document.images)
    	{
            if(tmpHolder > " ")
            {
    	    	document[tmpHolder].src = eval(tmpHolder + "[0].src");
            }
    		document[name].src = eval(name + "[2].src");
	    	tmpHolder = name;
    	}
    }