function externalLinks() {
        if (!document.getElementsByTagName) return;
        var anchors = document.getElementsByTagName("a");
        for (var i=0; i<anchors.length; i++) {
            var anchor = anchors[i];
            if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") {
                anchor.target = "_blank";
            }
        }
    }
    
    function validationHook(validators, control) {
        if ((typeof(validators) != "undefined") && (validators != null)) {
            var i;
            for (i = 0; i < validators.length; i++) {
                //alert(control.id);
                if (validators[i].controltovalidate == control.id) {
                    ValidatorValidate(validators[i], null, null);
                    setRequiredFieldProperties(validators[i], control);
                    //alert(validators[i].id + "\r\n" + validators[i].isvalid);
                    if (!validators[i].isvalid) {break;}
                }
            }
        }
    }

    function setRequiredFieldProperties(validator, control) {
        //if ((validator.isvalid) && (control.value.length > 0)){
        if (validator.isvalid){
            switch(control.type) {
                case "text":
                    control.className = "textInputValid";
                    control.title = "";
                    break;
                case "select-one":
                    control.className = "textInputValid";
                    control.title = "";
                    break;
                case "select-multiple":
                    break;
                default:
                    break;
            }
            //showObjectProperties(control);
            //showObjectProperties(validator);
        }
        else {
            switch(control.type) {
                case "text":
                    control.className = "textInputRequired";
                    control.title = validator.errormessage;
                    break;
                case "select-one":
                    control.className = "textInputRequired";
                    control.title = validator.errormessage;
                    break;
                case "select-multiple":
                    break;
                default:
                    break;
            }
        }
    }
    
    // for debugging
    function showObjectProperties(source) {
        var propCollection = "";

        for(var property in source)
        {
            if ((source[property] != null) && (source[property] != "")) {
                propCollection += (property + ": " + source[property] + "\t");
            }
        }
        
        alert(propCollection);
    }

    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_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_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];}
    }