function writeNav(num) {
	a = 0;
	s = 0;
	w = 0;
	g = 0;
	e = 0;
	d = 0;
	c = 0;
	switch (num) 
{ 
   case 1 : 
      a=1;
      break; 
   case 2 : 
	 s=1;
	 break; 
   case 3 : 
      w=1;
      break; 
   case 4 : 
      g=1;
      break; 
   case 5 : 
      e=1;
      break; 
   case 6 : 
      d=1;
      break; 
   case 7 : 
      c=1;
      break; 
} 


	HtmlStr = "";
	HtmlStr += "<table width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" bgcolor=\"Black\">";
	HtmlStr += "<tr>";
	HtmlStr += "<td rowspan=\"3\" valign=\"top\"><A HREF=\"index.htm\" TARGET=\"_self\"><img src=\"image/logo.gif\" width=\"168\" height=\"57\" alt=\"\" border=\"0\"></a></td>";
	HtmlStr += "<td valign=\"top\"><img src=\"image/top_pic.gif\" width=\"603\" height=\"26\" alt=\"\" border=\"0\"></td>";
	HtmlStr += "	<td rowspan=\"3\" bgcolor=\"black\" width=\"100%\"><img src=\"image/clear.gif\"  width=\"10\"  height=\"57\" alt=\"\" border=\"0\"></td>";
	HtmlStr += "</tr>";
	HtmlStr += "<tr><td valign=\"top\"><img src=\"image/slogan.gif\" width=\"603\" height=\"15\" alt=\"\" border=\"0\"></td></tr>";
	HtmlStr += "<tr><td valign=\"top\"><A HREF=\"about.htm\" TARGET=\"_self\" onMouseOver=\"select('A');showM('menu1', 'show');\" onMouseOut=\"deselect('A');showM('menu1', 'hide');\"><img src=\"image/n_abot"+a+".gif\" width=\"92\" height=\"16\" alt=\"\" border=\"0\" name=\"A\"></a><A HREF=\"service.htm\" TARGET=\"_self\" onMouseOver=\"select('B');showM('menu2', 'show');\" onMouseOut=\"deselect('B');showM('menu2', 'hide');\"><img src=\"image/n_ser"+s+".gif\" width=\"70\" height=\"16\" alt=\"\" border=\"0\" name=\"B\"></a><A HREF=\"what.htm\" TARGET=\"_self\" onMouseOver=\"select('C');showM('menu3', 'show');\" onMouseOut=\"deselect('C');showM('menu3', 'hide');\"><img src=\"image/n_what"+w+".gif\" width=\"86\" height=\"16\" alt=\"\" border=\"0\" name=\"C\"></a><A HREF=\"get.htm\" TARGET=\"_self\" onMouseOver=\"select('D');showM('menu4', 'show');\" onMouseOut=\"deselect('D');showM('menu4', 'hide');\"><img src=\"image/n_get"+g+".gif\" width=\"87\" height=\"16\" alt=\"\" border=\"0\" name=\"D\"></a><A HREF=\"employ.htm\" TARGET=\"_self\" onMouseOver=\"select('E');showM('menu5', 'show');\" onMouseOut=\"deselect('E');showM('menu5', 'hide');\"><img src=\"image/n_emp"+e+".gif\" width=\"87\" height=\"16\" alt=\"\" border=\"0\" name=\"E\"></a><A HREF=\"contri.htm\" TARGET=\"_self\" onMouseOver=\"select('F');showM('menu6', 'show');\" onMouseOut=\"deselect('F');showM('menu6', 'hide');\"><img src=\"image/n_contr"+d+".gif\" width=\"93\" height=\"16\" alt=\"\" border=\"0\" name=\"F\"></a><A HREF=\"cont.htm\" TARGET=\"_self\" onMouseOver=\"select('G');showM('menu7', 'show');\" onMouseOut=\"deselect('G');showM('menu7', 'hide');\"><img src=\"image/n_cont"+c+".gif\" width=\"88\" height=\"16\" alt=\"\" border=\"0\" name=\"G\"></a></td></tr>";
	HtmlStr += "</table>";

	document.write (HtmlStr);

}