function bloque_clic()
{
//alert('Copyright www.XBiz.be');
//return false;
}

function disableselect(e){return false;}

function reEnable(){return true;}

//if IE4+
document.onselectstart=new Function("return false");

//if NS6
if (window.sidebar){
document.onmousedown=disableselect;
document.onclick=reEnable;
}