function textCounter(field, countfield, maxlimit,txthid) 
{
var tb = document.getElementById(field);
var cnt = document.getElementById(countfield);
var obj=document.getElementById(txthid);
if(tb == null)
return;
if (tb.value.length > maxlimit) 
{
tb.value = tb.value.substring(0, maxlimit);
}
else
{
cnt.innerHTML = '[Max characters: '+ maxlimit + '. ' + 'Remain: ' + (maxlimit - tb.value.length) +']';
obj.value=cnt.innerHTML;
}
}