function style(){
		var agt=navigator.userAgent.toLowerCase();
	
		// *** BROWSER ***
		var is_major = parseInt(navigator.appVersion);
		var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
	                    && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
	                    && (agt.indexOf('webtv')==-1));
	    
		var is_nav4 = (agt.indexOf('mozilla/4') != -1);

		var is_ie   = (agt.indexOf("msie") != -1);
		var is_ie5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
		var is_aol   = (agt.indexOf("aol") != -1);
	
		// *** PLATFORM ***
		var is_win   = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
		var is_mac    = (agt.indexOf("mac")!=-1);
	    	
		if (is_mac == true) {
			if (is_nav == true) {
				if (is_nav4 == true) {
					//navigator version 4.x
					document.write("<link rel='stylesheet' type='text/css' href='files/mac_ns4.css' title='styles'>");
				} else {
					//NOT navigator version 4.x
					document.write("<link rel='stylesheet' type='text/css' href='files/mac_ns.css' title='styles'>");
				}
			} else if (is_ie == true && is_aol == false && is_ie5 == false) {
				document.write("<link rel='stylesheet' type='text/css' href='files/mac_ie4.css' title='styles'>");
			} else if (is_ie == true && is_aol == false && is_ie5 == true) {
				document.write("<link rel='stylesheet' type='text/css' href='files/mac_ie5.css' title='styles'>");
			} else if (is_aol == true) {
				document.write("<link rel='stylesheet' type='text/css' href='files/mac_ie4.css' title='styles'>");
			} else  {
				document.write("<link rel='stylesheet' type='text/css' href='files/default.css' title='styles'>");
			}
		}	
		else if (is_win == true) {
			if (is_nav == true) {
				document.write("<link rel='stylesheet' type='text/css' href='files/win_ns.css' title='styles'>");
			} else if (is_ie == true && is_aol == false) {
				document.write("<link rel='stylesheet' type='text/css' href='files/default.css' title='styles'>");
			} else if (is_aol == true) {
				document.write("<link rel='stylesheet' type='text/css' href='files/default.css' title='styles'>");
			} else  {
				document.write("<link rel='stylesheet' type='text/css' href='files/default.css' title='styles'>");
			}
		}
		else {document.write("<link rel='stylesheet' type='text/css' href='files/default.css' title='styles'>");}
	}