// pop up window
// javascript: popup(name,page_url,width,height)
function popup (name,page,width,height) {
 id = window.open(page,name,'toolbar=no,location=no,scrollbars=yes,width='+width+',height=' +height);
 id.focus();
}

function digitsOnly(myField){
   var int_pattern = /\D+/;
   myField.value = myField.value.replace(int_pattern,'');
}

function selecturl(s){
  var gourl = s.options[s.selectedIndex].value;
  window.top.location.href = gourl;
}

/// TOGGLE LAYER
function toggleLayer(whichLayer)
{
if (document.getElementById)
{
// this is the way the standards work
var style2 = document.getElementById(whichLayer).style;
style2.display = style2.display? "":"block";
}
else if (document.all)
{
// this is the way old msie versions work
var style2 = document.all[whichLayer].style;
style2.display = style2.display? "":"block";
}
else if (document.layers)
{
// this is the way nn4 works
var style2 = document.layers[whichLayer].style;
style2.display = style2.display? "":"block";
}
}