<!--

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_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_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 su_submission() {
    if ( document.signupform.su_name.value == "" ) {
        alert( "Please enter your name." );
        return false;
    }
    if ( document.signupform.su_phone.value == "" ) {
        alert( "Please enter a telephone number." );
        return false;
    }
    if ( document.signupform.su_email.value == "" ) {
        alert( "Please provide an email address." );
        return false;
    }

    return true;
}

function calc_submission() {
    if ( isNaN(parseInt(document.calcform.calc_height.value)) ) {
        alert( "Please enter your height as a single number in inches.\nExample: 68" );
        return false;
    }
    if ( isNaN(parseInt(document.calcform.calc_weight.value)) ) {
        alert( "Please enter your weight as a single number in pounds.\nExample: 165" );
        return false;
    }
    if ( isNaN(parseInt(document.calcform.calc_age.value)) ) {
        alert( "Please enter your age as a single number in years.\nExample: 52" );
        return false;
    }
    if ( !document.calcform.calc_gender1.checked &&
            !document.calcform.calc_gender2.checked ) {
        alert( "Please select your gender." );
        return false;
    }
    if ( document.calcform.calc_actlvl.value == -1 ) {
        alert( "Please select your average day-to-day activity level." );
        return false;
    }
    
    return true;
}

function st_submission() {
    if ( document.sendtoform.st_tname.value == "" ) {
        alert( "Please enter your friend's name." );
        return false;
    }
    if ( document.sendtoform.st_fname.value == "" ) {
        alert( "Please enter your name." );
        return false;
    }
    if ( document.sendtoform.st_temail.value == "" ) {
        alert( "Please enter your friend's email." );
        return false;
    }
    if ( document.sendtoform.st_femail.value == "" ) {
        alert( "Please enter your email." );
        return false;
    }

    return true;
}

//-->