function precarga(){
	var img_cantv=new Array("tabs/cantv_net.gif","tabs/cantv_net_on.gif","tabs/CANTV_TAB.gif","tabs/CANTV_TAB.jpg","tabs/CANTV_TAB_off.gif","tabs/cantv_Vers_3.gif","tabs/movilnet.gif","tabs/movilnet_on.gif","tabs/oficina_virtual.jpg","tabs/pag_amarillas.gif","tabs/paginas_amarillas_tab_on.gif");
	var img =new Array()
	for (i=0;i<12;i++){
	img[i]=new Image();
	img[i].src=img_cantv[i];
	}
}