function ValidateData() {

//Submission variable
var CanSubmit = false;

//Check to make sure that the worksheet title field is not empty.
CanSubmit = ForceEntry("WorksheetTitle", "Please enter a title for the worksheet.");
if (!CanSubmit) return;

// check numeric entries are numeric 
CanSubmit = ForceNumber("QuestionCount", "Number of questions");
if (!CanSubmit) return;

//Check a range has been entered for: start number
CanSubmit = ForceRange("Start", "Starting number");
if (!CanSubmit) return;

//Check a range has been entered for: width
CanSubmit = ForceRange("SqWidth", "Width");
if (!CanSubmit) return;

//Check a range has been entered for: height
CanSubmit = ForceRange("SqHeight", "Height");
if (!CanSubmit) return;

//Check a range has been entered for: increment
CanSubmit = ForceRange("Step", "Step");
if (!CanSubmit) return;

//Check a range has been entered for: remove (percent)
CanSubmit = ForceRange("Remove", "Remove");
if (!CanSubmit) return;

//If fields have been entered correctly, submit the form
if (CanSubmit) document.Layout100Square.submit();

} //end function