
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 MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

 function checkForm(fname) {
   if(!document.getElementById ) return true;
  var bug1  = null;
  var bugcount = 0;
  var fo, fomsg, fotype, fodad;
  var f = document.getElementById(fname);
  for (var i=0; i<f.length; i++) {
    fo = f.elements[i];
    if(fo.className.indexOf("check") < 0) continue; // ignore if no checking on this form element
    fomsg  = false;
    fodad  = fo.parentNode
    fotype = (fo.type) ? fo.type : fo.tagName;
  	switch(fotype){
      case "select-one":
        if(fo.selectedIndex > 0) break; // Eliminates both first selection (0) and no selection (-1)
        fomsg = "Please select a valid entry (not the one that begins \"Please select\")";
        break;
      case "text":
        var foval;
        foval = fo.value.replace(/^\W+/, "");
        foval = foval.replace(/\W+$/, "");
        if(foval.length == 0) {
          fomsg = "You must type something in this box";
          break;
        }
        switch(fo.name){
          case "phoneno":
            var fonum = foval.replace(/\D/g, ""); // Kill everything except digits
            if(fonum.length < 6) fomsg = "Please enter a valid phone number";
            break;
           case "email":
            var a = fo.value.split("@");
            if(a.length < 2 ) {
              fomsg = "The email address is invalid: no @";
              break;
            } else if(a.length > 2 ) {
              fomsg = "The email address is invalid: more than one @";
              break;
            }
            var dotpos = a[1].lastIndexOf(".");
            if ((dotpos < 2) || (dotpos > a[1].length - 3)) {
              fomsg = "A valid email address looks like yourname@company.com";
              break;
            } // Leave more extensive checks to the server
        }
      default:
        break;
    }
    if(fomsg) {
			if(fo.disabled) {
				fomsg = "";
			} else {
        bugcount++ ;
        if(!bug1) bug1 = fo;
			}
		}
    // Update any existing error messages
    var em = document.getElementById("em" + fo.id);
    if(!em) { // No existing error message...
      if(!fomsg) continue; // ...and no error
      var em = document.createElement("font");
      em.setAttribute("color", "red");
      em.id = "em" + fo.id;
      fodad.appendChild(em);
    }
    if (em.childNodes.length) { // Error message already exists...
      if(fomsg) { //... Replace it if there is still an error
        em.childNodes[0].nodeValue = fomsg;
      } else { //... or clear it if the error has been removed
        fodad.removeChild(em);
      }
    } else { // no error message yet - create it
      var emnew = document.createTextNode(fomsg);
      em.appendChild(emnew);
	}

	//alert("innerHTML: " + em.innerHTML + ", nodeValue: " + em.nodeValue);
  }

  if(bugcount > 0) {
    var ctmsg = (bugcount == 1) ? "box with a message" : bugcount + " boxes";
    alert ("Please review the " + ctmsg + " with a message in red");
    if(bug1) bug1.focus();
    return false;
	}

return true;
}
