Sander,
gracias por la respuesta. El código de javascript que me pegaste hay ubicarlo en el <head> junto con todos los scripts que usa el html?
Código:
<script type="text/javascript" language="javascript" src="SpryAssets/jquery.js"></script>
<script type="text/javascript">
<!--//---------------------------------+
// Developed by Roshan Bhattarai
// Visit http://roshanbh.com.np for this script and more.
// This notice MUST stay intact for legal use
// --------------------------------->
$(document).ready(function()
{
//slides the element with class "menu_body" when paragraph with class "menu_head" is clicked
$("#firstpane p.menu_head").click(function()
{
$(this).css({backgroundImage:"url(down.png)"}).next("div.menu_body").slideToggle(300).siblings("div.menu_body").slideUp("slow");
$(this).siblings().css({backgroundImage:"url(left.png)"});
});
//slides the element with class "menu_body" when mouse is over the paragraph
$("#secondpane p.menu_head").mouseover(function()
{
$(this).css({backgroundImage:"url(down.png)"}).next("div.menu_body").slideDown(500).siblings("div.menu_body").slideUp("slow");
$(this).siblings().css({backgroundImage:"url(left.png)"});
});
});
function MM_swapImgRestore() { //v3.0
var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() { //v3.0
var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
$('a').click(function(event){
event.preventDefault();
var url = $(this).attr('href');
$('#mainContent').load(url);
})
</script>
porque me abre el link, pero en una pagina nueva, no dentro del div "#mainContent"...
Aqui dejo el link, el boton al que le aplique el codigo esta en SERVICIOS > "PATENTES"