function vP(ptable, link){
var obj = document.getElementById(ptable);
obj.className = obj.className == 'pn' ? 'pv' : 'pn';
 	}

function vPs (ptable, link){
var obj = document.getElementById(ptable);
var objs = document.getElementById('ss-'+ptable);
obj.className = obj.className == 'pn' ? 'pv' : 'pn';
objs.className = objs.className == 'pns' ? 'pvs' : 'pns';
 	}
function vPa (ptable, link){
var obj = document.getElementById(ptable);
var objs = document.getElementById('d_'+ptable);
obj.className = obj.className == 'pn' ? 'pv' : 'pn';
objs.className = objs.className == 'pn' ? 'pv' : 'pn';       	}