if(navigator.appVersion.substring(0,1)>=3)
	{
	bot0		=new Image();
	bot0.src	="images/opc_quienes.gif";
	bot0p		=new Image();
	bot0p.src	="images/opc_quienesx.gif";
	bot1		=new Image();
	bot1.src	="images/opc_problemas.gif";
	bot1p		=new Image();
	bot1p.src	="images/opc_problemasx.gif";
	bot2		=new Image();
	bot2.src	="images/opc_proposito.gif";
	bot2p		=new Image();
	bot2p.src	="images/opc_propositox.gif";
	bot3		=new Image();
	bot3.src	="images/opc_metodologia.gif";
	bot3p		=new Image();
	bot3p.src	="images/opc_metodologiax.gif";
	bot4		=new Image();
	bot4.src	="images/opc_princ_prod.gif";
	bot4p		=new Image();
	bot4p.src	="images/opc_princ_prodx.gif";
	bot5		=new Image();
	bot5.src	="images/opc_avances.gif";
	bot5p		=new Image();
	bot5p.src	="images/opc_avancesx.gif";
	bot6		=new Image();
	bot6.src	="images/opc_bibliografia.gif";
	bot6p		=new Image();
	bot6p.src	="images/opc_bibliografiax.gif";
	bot7		=new Image();
	bot7.src	="images/opc_aliados.gif";
	bot7p		=new Image();
	bot7p.src	="images/opc_aliadosx.gif";
	bot8		=new Image();
	bot8.src	="images/opc_resumen.gif";
	bot8p		=new Image();
	bot8p.src	="images/opc_resumenx.gif";
	bot9		=new Image();
	bot9.src	="images/opc_inicio.gif";
	bot9p		=new Image();
	bot9p.src	="images/opc_inicioa.gif";
	bot10		=new Image();
	bot10.src	="images/opc_novedades.gif";
	bot10p		=new Image();
	bot10p.src	="images/opc_novedadesx.gif";



	}
function CambiaImg(imgid,imgnew)
	{
	if(navigator.appVersion.substring(0,1)>=3)
		{
		document.images[imgid].src=eval(imgnew+".src");
		}
	}
function abreventana(donde,quien,como)
{ 
infoventana=window.open(donde,quien,como);
if (navigator.appName.substring(0,8) == "Netscape")	
{
window.infoventana.focus()
}
}