function platforminit() {
	if (window.navigator.userAgent.indexOf("Win") >= 0)
		
		{
		if (window.navigator.appName.indexOf("Netscape") >= 0)
			document.write("<LINK rel=\"stylesheet\" type=\"text/css\" href=\"../style/win_nc.css\">");
		else
			document.write("<LINK rel=\"stylesheet\" type=\"text/css\" href=\"../style/win_ie.css\">");
		}
	else
			{
		if (window.navigator.appName.indexOf("Netscape") >= 0)
			document.write("<LINK rel=\"stylesheet\" type=\"text/css\" href=\"../style/mac_nc.css\">");
		else
			document.write("<LINK rel=\"stylesheet\" type=\"text/css\" href=\"../style/mac_ie.css\">");
		}
	}

platforminit()