function isBlank(s) {
  if ((s == null) || (s == "")) return true;
  return false;
}

// Set focus on screen to first blank input area
function blankFocus() {
  ff = -1;
  if (document.forms.length > 0) {
    field = document.forms[0];
    for (i=0; i<field.length; i++) {
      elt = field.elements[i];
      if ( (elt.type == "text") || 
           (elt.type == "password") ||
           (elt.type == "file") ||
           (elt.type == "textarea") ||           
           (elt.type == "select-one") ) {
        if (elt.name != "dummy") {
          if (ff == -1) ff = i;
          if (isBlank(elt.value)) {
            elt.focus();
            return;
          }
        }
      }
    }
    // If no blanks, set to first field!
    if (ff > -1) field.elements[ff].focus();
  }
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}


function setFocus() {

if (document.forms.length > 0)
{
    var field = document.forms[0];
    for (num = 0; num < field.length; num++)
    {
        if ((field.elements[num].type == 'text') || (field.elements[num].type == 'textarea'))
        {
            document.forms[0].elements[num].focus();
            break;
        }
    }
}

}