document.write('<STYLE type="text/css">');
document.write('#menuprin { position:absolute; width:720px; }');
document.write('#menutabla { border-width: 0; border-color: #808080; border-style:solid}');
document.write('td.menucelda { padding-left:4; padding-right:4; background:#CCFFCC; border:1 solid #000000; }');
document.write('#submenutabla { background: #CC0000; border-width: 0; border-color: #808080; border-style:solid}');
document.write('td.supcelda {text-decoration:none; color:#000000; font-weight: 700; font-family: Verdana; font-size: 12px; font-style:normal; }');
document.write('a.supitem {text-decoration:none; color:#000000; font-weight: 700; font-family: Verdana; font-size: 12px; font-style:normal;} ');
document.write('a.supitem:hover {text-decoration:none; color:#CC0000; }');
document.write('a.itemhijo {text-decoration:none; color:#000000; font-weight: 700; font-family: Verdana; font-size: 12px; font-style:normal;} ');
document.write('a.itemhijo:hover {text-decoration:none; color:#CCFFCC; }');
document.write('P.formatomenu {color:#000000; font-weight: 700; font-family: Verdana; font-size:12px; font-style:normal;}');
document.write('P.formatosubmenu {text-decoration:none; color:#000000; font-weight: 700; font-family: Verdana; font-size:12px; font-style:normal;}');
document.write('#submenu1 { position:absolute; left:2px; top:150px; visibility:hidden; }');
document.write('#submenu2 { position:absolute; left:2px; top:150px; visibility:hidden; }');
document.write('#submenu3 { position:absolute; left:2px; top:150px; visibility:hidden; }');
document.write('#submenu4 { position:absolute; left:2px; top:150px; visibility:hidden; }');
document.write('</style>');
var navegador
var tiempo = null;
if(document.layers){ navegador='NN4'; }
if(document.all){ navegador='IE'; }
if(!document.all && document.getElementById){ navegador='NN6'; }
function mostrarmenu(menuname)
{
if(navegador=='NN4') document.layers[menuname].visibility = 'visible';
if(navegador=='IE') document.all[menuname].style.visibility = 'visible';
if(navegador=='NN6') document.getElementById(menuname).style.visibility = 'visible';
if(tiempo) clearTimeout(tiempo);}
function tiempomenu()
{
if(tiempo) clearTimeout(tiempo);tiempo = setTimeout("ocultartodo();",1000);
}
function ocultarmenu(menuname)
{
if(navegador=='NN4') document.layers[menuname].visibility = 'hidden';
if(navegador=='IE') document.all[menuname].style.visibility = 'hidden';
if(navegador=='NN6') document.getElementById(menuname).style.visibility = 'hidden';
}
function resaltarmenu(menuitem) 
{
if(typeof(paginaactual)!='undefined' && menuitem==paginaactual) return;
if(navegador=='IE') document.all[menuitem].style.backgroundColor = '#CC0000';
if(navegador=='NN6') document.getElementById(menuitem).style.backgroundColor = '#CC0000';
if(tiempo) clearTimeout(tiempo);}
function noresaltarmenu(menuitem) 
{
if(typeof(paginaactual)!='undefined' && menuitem==paginaactual) return;
if(navegador=='IE') document.all[menuitem].style.backgroundColor = '#CCFFCC';
if(navegador=='NN6') document.getElementById(menuitem).style. backgroundColor = '#CCFFCC';
if(tiempo) clearTimeout(tiempo);tiempo = setTimeout("ocultartodo();",1000);
}
function ocultartodo()
{
ocultarmenu('submenu1');
ocultarmenu('submenu2');
ocultarmenu('submenu3');
ocultarmenu('submenu4');
}
function abrirmenu(menuname)
{
mostrarmenu(menuname);
if(menuname!='submenu1') ocultarmenu('submenu1');
if(menuname!='submenu2') ocultarmenu('submenu2');
if(menuname!='submenu3') ocultarmenu('submenu3');
if(menuname!='submenu4') ocultarmenu('submenu4');
}
document.write('<table width=720 height=20 cellspacing=0 border=0 cellpadding=0>');
document.write('<tr><td align=left valign=top >');
document.write('<span id="menuprin">');
document.write('<table width=720 id="menutabla" cellspacing=0 cellpadding=2>');
document.write('<tr>');
document.write('<td align=center background="l5.gif">&nbsp;</td>');
document.write('<td class="supcelda" align=CENTER width=120 background="b5.gif">')
document.write('<a href="presentacion.htm" class="supitem" onMouseOver="ocultartodo()">Presentación</a>');
document.write('</td>');
document.write('<td align=center background="s5.gif">&nbsp;</td>');
document.write('<td class="supcelda" align=CENTER width=120 background="b5.gif">')
document.write('<a href="index.htm" class="supitem" onMouseOver="abrirmenu(\'submenu1\')" onMouseOut="tiempomenu();">Representación</a>');
document.write('</td>');
document.write('<td align=center background="s5.gif">&nbsp;</td>');
document.write('<td class="supcelda" align=CENTER width=120 background="b5.gif">')
document.write('<a href="index.htm" class="supitem" onMouseOver="abrirmenu(\'submenu2\')" onMouseOut="tiempomenu();">Ordenación</a>');
document.write('</td>');
document.write('<td align=center background="s5.gif">&nbsp;</td>');
document.write('<td class="supcelda" align=CENTER width=120 background="b5.gif">')
document.write('<a href="index.htm" class="supitem" onMouseOver="abrirmenu(\'submenu3\')" onMouseOut="tiempomenu();">Explicaciones</a>');
document.write('</td>');
document.write('<td align=center background="s5.gif">&nbsp;</td>');
document.write('<td class="supcelda" align=CENTER width=120 background="b5.gif">')
document.write('<a href="index.htm" class="supitem" onMouseOver="abrirmenu(\'submenu4\')" onMouseOut="tiempomenu();">Operaciones</a>');
document.write('</td>');
document.write('<td align=center background="s5.gif">&nbsp;</td>');
document.write('<td class="supcelda" align=CENTER width=120 background="b5.gif">')
document.write('<a href="ayuda.htm" class="supitem" onMouseOver="ocultartodo()">Ayuda</a>');
document.write('</td>');
document.write('<td align=center background="r5.gif">&nbsp;</td>');
document.write('</tr>');
document.write('</table><p>');
document.write('<div id="submenu1">');
document.write('<table id="submenutabla" width=150 cellspacing=1>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu0a" onMouseOver="resaltarmenu(\'submenu00\')" onMouseOut="noresaltarmenu(\'submenu00\')">');
document.write('<a class="itemhijo" ><font color="#cc0000">Representación</font></a>');
document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu00" onMouseOver="resaltarmenu(\'submenu00\')" onMouseOut="noresaltarmenu(\'submenu00\')">');
document.write('<a href="repre/index_n.htm" class="itemhijo" >Naturales</a>');
document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu01" onMouseOver="resaltarmenu(\'submenu01\')" onMouseOut="noresaltarmenu(\'submenu01\')">');
document.write('<a href="repre/index_e.htm" class="itemhijo" >Enteros</a>')
;document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu02" onMouseOver="resaltarmenu(\'submenu02\')" onMouseOut="noresaltarmenu(\'submenu02\')">');
document.write('<a href="repre/index_f.htm" class="itemhijo" >Fracciones</a>')
;document.write('</td>');
document.write('</tr>');
document.write('</table></div>');
document.write('<div id="submenu2">');
document.write('<table id="submenutabla" width=150 cellspacing=1>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu1a" onMouseOver="resaltarmenu(\'submenu10\')" onMouseOut="noresaltarmenu(\'submenu10\')">');
document.write('<a class="itemhijo" ><font color="#cc0000">Ordenación</font></a>');
document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu10" onMouseOver="resaltarmenu(\'submenu10\')" onMouseOut="noresaltarmenu(\'submenu10\')">');
document.write('<a href="orden/index_n.htm" class="itemhijo" >Naturales</a>')
;document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu11" onMouseOver="resaltarmenu(\'submenu11\')" onMouseOut="noresaltarmenu(\'submenu11\')">');
document.write('<a href="orden/index_e.htm" class="itemhijo" >Enteros</a>')
;document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu12" onMouseOver="resaltarmenu(\'submenu12\')" onMouseOut="noresaltarmenu(\'submenu12\')">');
document.write('<a href="orden/index_f.htm" class="itemhijo" >Fracciones</a>')
;document.write('</td>');
document.write('</tr>');
document.write('</table></div>');
document.write('<div id="submenu3">');
document.write('<table id="submenutabla" width=150 cellspacing=1>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu2a" onMouseOver="resaltarmenu(\'submenu20\')" onMouseOut="noresaltarmenu(\'submenu20\')">');
document.write('<a class="itemhijo" ><font color="#cc0000">Explicaciones</font></a>');
document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu20" onMouseOver="resaltarmenu(\'submenu20\')" onMouseOut="noresaltarmenu(\'submenu20\')">');
document.write('<a href="expli/index_e.htm" class="itemhijo" >Enteros</a>')
;document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu21" onMouseOver="resaltarmenu(\'submenu21\')" onMouseOut="noresaltarmenu(\'submenu21\')">');
document.write('<a href="expli/index_f.htm" class="itemhijo" >Fracciones</a>')
;document.write('</td>');
document.write('</tr>');
document.write('</table></div>');
document.write('<div id="submenu4">');
document.write('<table id="submenutabla" width=150 cellspacing=1>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu3a" onMouseOver="resaltarmenu(\'submenu30\')" onMouseOut="noresaltarmenu(\'submenu30\')">');
document.write('<a class="itemhijo" ><font color="#cc0000">Operaciones</font></a>');
document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu30" onMouseOver="resaltarmenu(\'submenu30\')" onMouseOut="noresaltarmenu(\'submenu30\')">');
document.write('<a href="opera/index_n.htm" class="itemhijo" >Naturales</a>')
;document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu31" onMouseOver="resaltarmenu(\'submenu31\')" onMouseOut="noresaltarmenu(\'submenu31\')">');
document.write('<a href="opera/index_e.htm" class="itemhijo" >Enteros</a>')
;document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td align=LEFT class="menucelda" height=20 id="submenu32" onMouseOver="resaltarmenu(\'submenu32\')" onMouseOut="noresaltarmenu(\'submenu32\')">');
document.write('<a href="opera/index_f.htm" class="itemhijo" >Fracciones</a>')
;document.write('</td>');
document.write('</tr>');
document.write('</table></div>');
document.write('</span></td></tr></table>');