/*
f241-4.js
03/16/05 jco -- Copied from new Elink 241-1.js 
*/

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/* Sets the focus after a page reload to the last field the user was on */
function setFocus() {
    document.forms[0].elements[document.forms[0].lastfield.value].focus();
}

/* Saves position of scrollbar on a submit so that the user stays at whatever point they were at in 
   the form.  Handy for items that are refreshed after selecting different values.
*/
function saveScrollCoordinates() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement &&
      ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
   document.forms[0].scrollx.value = scrOfX;
   document.forms[0].scrolly.value = scrOfY;
}

function update_field(t_list,t_field,delim,codeonly) {

/* function: update_field
   purpose:  This function is responsible for populating the specified field (t_field) from the
             specified list (t_list) using the specified delimiter (delim).   Does not allow duplicate
             values to be added to the field.
*/
        var has_text = t_field.value;
        if (has_text.length > 0) { delimiter = delim + " "; }
        else { delimiter = "";}
        if (codeonly != "true")  { the_select = t_list.options[t_list.selectedIndex].text; }
        else { the_select = t_list.options[t_list.selectedIndex].value; } 
        if (t_field.value.indexOf(the_select) == -1)  {
           t_field.value = t_field.value + delimiter + the_select; 
        }        
 }

/* Checks to see if an access limitation is OUO and adds OUO to the front of the field IF it's not already
   there.
*/
function checkaccesslims(limval, t_field) {
        if (t_field.value.indexOf("OUO") != 0)  {
            if (limval == 'ECI' || limval == 'OTHR' || limval == 'PROT' || limval == 'PDOUO' || limval == 'SSI' || limval == 'PROP'  || limval == 'PAT' || limval == 'AT') {
              if (t_field.value != "") 
                 t_field.value = "OUO; " + t_field.value;
              else 
                 t_field.value = "OUO; " + limval; 
           }  
         } 
}