var emptyString = /^\s*$/ ;

function filledInCheck (element) {

  if (emptyString.test(element.value) || element.value == "" ) {
      return false;
  }
  return true;
}

function checkValid (checkArray,checkCount) {

    var count =0;

    for (i=0;i<checkArray.length;i++) {
        if (checkArray[i] == "ok") {
            count++;
        };
    }

    if (count == checkCount) {
        return true;
    }else{
        alert("You must complete the highlighted fields!");
        return false;
    };

};

function checkText (element,img) {

    if (filledInCheck(element)){

        document.getElementById(img).style.display="none";
        return "ok";

    };

    document.getElementById(img).style.display="inline";
    return "bad";

};

function checkNum (element,img) {

    if (filledInCheck(element)){

        if(element.value>0) {
            document.getElementById(img).style.display="none";
            return "ok";
        };

    };

    document.getElementById(img).style.display="inline";
    return "bad";

};

function checkSet (element,img) {

    if(element.selected ==0) {

        document.getElementById(img).style.display="inline";
        return "bad";

    };

    document.getElementById(img).style.display="none";
    return "ok";

};