if/then statement for a field to not print content?

Hi,

I am using Adobe Acrobat Pro XI and would like to have a field not print its content if the form has not been saved since it was opened. I have 2 form fields in my document and below is the java script applied to them:

//<Document-Level>

//<ACRO_source>Init</ACRO_source>

//<ACRO_script>

/*********** belongs to: Document-Level:Init ***********/

var f = this.getField("DateCreation");

f.value = "COPY: this copy is for reference only and will expire 7 days from " + util.printd("mm-dd-yy", new Date()) + " or the saved date below, whichever occurs first";

strMsg = "Saved on: " + util.printd("mm-dd-yy",this.modDate);

this.getField("DateSaved").value = strMsg;

//</ACRO_script>

//</Document-Level>

//<Document-Actions>

//<ACRO_source>Document Will Save</ACRO_source>

//<ACRO_script>

/*********** belongs to: Document-Actions:Document Will Save ***********/

strMsg = "  Saved on: " + util.printd("mm-dd-yy",new Date());

this.getField("DateSaved").value = strMsg;

//</ACRO_script>

//</Document-Actions>

The DateSaved field properties are set to "hidden but printable," but I also want the DateSaved field to NOT print its content if the document has not been saved since it was opened. Is this possible?

Thank you for your help!