var emailRegEx = new RegExp("^[\\w\\.-]+@(?:[\\w-]+\\.)*[\\w-]+\\.\\w+$");

 String.prototype.trim = function () { return this.replace(/^\s*|\s*$/,""); }

 function getElement (obj)
 {
   if (typeof obj == "string")
    { return document.all ? document.all(obj) : document.getElementById ? document.getElementById(obj) : document.layers ? document.layers[obj] : null; }
   else
    { return obj; }
 }

 function getSelectedValue (box)
 {
   return (box.selectedIndex >= 0) ? box[box.selectedIndex].value : "" ;
 }

 function isValidEmail (email)
 {
   return emailRegEx.test(email);
 }

 function AGOnload ()
 {
   initDHTMLAPI();
   //alert(document.body);
   //alert("isCSS: " + isCSS + ", isW3C: " + isW3C + ", isIE4: " + isIE4 + ", isNN4: " + isNN4 + ", isIE6CSS: " + isIE6CSS);

   if (getElement('ri_box') && getElement('ri_content') && getElement('footercontainer'))
   {
     var riw = getObjectWidth('ri_box');
     var rih = getObjectHeight('ri_box');
     var ril = getOffsetLeft('ri_box');
     var rit = getOffsetTop('ri_box');
     var ric = getObjectHeight('ri_content');
     //alert("RI Box: W = " + riw + ", H = " + rih + ", T = " + rit + ", C = " + ric);
     //alert("RI Box: L = " + ril + ", T = " + rit + ", H = " + rih);
     //alert("RI Content: H = " + ric);

     //var cl = getObjectLeft('footercontainer');
     //var ct = getObjectTop('footercontainer');
     var cl = getOffsetLeft('footercontainer');
     var ct = getOffsetTop('footercontainer');
     //alert("Footer Area: L = " + cl + ", T = " + ct);

     var newheight = ct - rit - rih + ric;
     //if (navigator.appName!="Netscape")
     if (navigator.appName=="Microsoft Internet Explorer")
     {
       newheight -= 5;
     }
     //alert("Newheight: " + newheight);
     getElement('ri_content').style.height=newheight+'px';
   }
 }

 function validateSearch (form)
 {
   if (form.zip.value=="") { alert("Please enter your zip code."); return false; }
   //if (form.zip.value.match(/[^0-9]/i)) { alert("Please enter your zip code."); return false; }
   if (form.zip.value.match(/[^0-9\-]/i)) { alert("Please enter your zip code."); return false; }
   return true;
 }

 function validateCitySearch (form)
 {
   if (form.city.value=="" || form.city.value=="Enter City") { alert("Please enter your city."); return false; }
   if (form.state.selectedIndex==0) { alert("Please enter your state."); return false; }
   return true;
 }

 function validateQuery (form)
 {
   if (form.query.value=="" || form.query.value=="Search")
    { alert("Please enter a search term."); return false; }
   return true;
 }

 function validateEmailForm (form)
 {
   if (form.to.value=="") { alert("Please enter the recipient's email address."); return false; }

   var errs = 0;
   var addrs = form.to.value.split(",");
   for (var i = 0; i < addrs.length; i++) { if (!isValidEmail(addrs[i].trim())) { errs++; } }
   if (errs) { alert("You have entered an invalid recipient email address"); return false; }

   if (form.from.value=="") { alert("Please enter your email address."); return false; }
   if (!isValidEmail(form.from.value)) { alert("You have entered an invalid From address"); return false; }
   return true;
 }

 function activateTab (tabnum, tabcount)
 {
   var v = document.getElementsByTagName("td");
   for (var i = 0; i < v.length; i++)
   {
     curid = v[i].id;
     if (curid.indexOf("tab_") != -1)
     {
       curstate = curid.substring(4,5);
       curtab = curid.substring(5,6);
       if (curtab == tabnum)
       {
         v[i].className = (curstate=="m") ? "tabon_"+curstate+tabcount : "tabon_"+curstate;
         getElement("tabcontent"+curtab).style.display = "inline";
       }
       else
       {
         v[i].className = (curstate=="m") ? "taboff_"+curstate+tabcount : "taboff_"+curstate;
         getElement("tabcontent"+curtab).style.display = "none";
       }
     }
   }
 }

 function activatePhoto (photonum)
 {
   var v = document.getElementsByTagName("a");
   for (var i = 0; i < v.length; i++)
   {
     curid = v[i].id;
     if (curid.indexOf("photolink_") != -1)
     {
       curnum = curid.substring(10);
       if (curnum == photonum)
       {
         v[i].className = "photo_on";
         getElement("photoimg_"+curnum).style.display = "";
       }
       else
       {
         v[i].className = "photo_off";
         getElement("photoimg_"+curnum).style.display = "none";
       }
     }
   }
 }

 function toggleDiv (id)
 {
   getElement(id).style.display = (getElement(id).style.display=="none") ? "" : "none" ;
 }

 function ShowLayer (id)
 {
   getElement(id).style.visibility = "visible";
 }

 function ShowLayerCMG (link, id, offset, top)
 {
   //alert(link.offsetLeft);
   positionMenu(link, id);
   getElement(id).style.visibility = "visible";
 }

 function HideLayer (id)
 {
   getElement(id).style.visibility = "hidden";
 }

 function OpenPrintVersion (url)
 {
   //window.open(url,'','width=700,height=600,scrollbars=1');
   window.open('/printver.html?url='+escape(url),'','width=700,height=600,scrollbars=1');
 }

 function OpenEmailID (cid)
 {
   window.open('/emailfriend.html?cid='+cid,'','width=500,height=600,scrollbars=1');
 }

 function OpenEmail (url, title)
 {
   window.open('/emailfriend.html?url='+url+'&title='+title,'','width=500,height=400,scrollbars=1');
 }

 function positionMenu (link, menuid)
 {
   var offsetLeft = getOffsetLeft(link);
   var offsetTop = getOffsetTop(link);

   // Account for height of text link
   offsetTop += getElement(link).offsetHeight;

   setDivLeftTop(menuid, offsetLeft, offsetTop);
 }

 function toggleGlossary (obj, id)
 {
   var offsetLeft = parseInt(getOffsetLeft(obj));
   var offsetTop = parseInt(getOffsetTop(obj));
   var divWidth = parseInt(getDivWidth(id));
   var scrollWidth = 16;	// Width of right scrollbar
   var addlPadding = 10;	// Additional right side padding

   // Account for height of text link
   offsetTop += getElement(obj).offsetHeight;

   // Adjust for glossary entry that goes off right side of screen
   //alert("Right side of div: " + (offsetLeft+divWidth));
   if (offsetLeft+divWidth > screen.width-scrollWidth-addlPadding)
     { offsetLeft -= (offsetLeft+400-screen.width+scrollWidth+addlPadding); }

   setDivLeftTop(id, offsetLeft, offsetTop);
   getElement(id).style.display = (getElement(id).style.display=="none") ? "" : "none" ;
 }

 function setDivLeftTop (id, left, top)
 {
   //alert("Setting '" + id + "' at " + left + ", " + top);
   getElement(id).style.left = left + "px";
   getElement(id).style.top = top + "px";
 }

 function getDivWidth (id)
 {
   var w = getElement(id).style.width.replace(/px$/i, "");
   return (isNaN(w)) ? 0 : w;
 }

 function getOffsetLeft (obj)
 {
   var theObj = getElement(obj);
   var offsetTrail = theObj;
   var offsetLeft = 0;
   //var lstr = "";
   while (offsetTrail)
   {
     //if (offsetTrail.style.position != "relative") { offsetLeft += offsetTrail.offsetLeft; }
     offsetLeft += offsetTrail.offsetLeft;
     //if (lstr!="") { lstr += ","; }
     //lstr += offsetTrail.offsetLeft;
     offsetTrail = offsetTrail.offsetParent;
   }
   if (navigator.userAgent.indexOf("Mac")!=-1 && typeof document.body.leftMargin!="undefined")
     { offsetLeft += document.body.leftMargin; }

   //alert("OffsetTrail: " + lstr);

   return offsetLeft;
 }

 function getOffsetTop (obj)
 {
   var theObj = getElement(obj);
   var offsetTrail = theObj;
   var offsetTop = 0;
   //var offsetTop = theObj.offsetHeight;	// To account for height of text
   //var hstr = "";
   while (offsetTrail)
   {
     //if (offsetTrail.style.position != "relative") { offsetTop += offsetTrail.offsetTop; }
     offsetTop += offsetTrail.offsetTop;
     //if (hstr!="") { hstr += ","; }
     //hstr += offsetTrail.offsetTop;
     offsetTrail = offsetTrail.offsetParent;
   }
   if (navigator.userAgent.indexOf("Mac")!=-1 && typeof document.body.leftMargin!="undefined")
     { offsetTop += document.body.topMargin; }

   //alert("OffsetTrail: " + hstr);

   return offsetTop;
 }