/* Function: clearDefaults(fieldName)
 	Author: John Weber
	
	fieldName - this is the field that you will be clearing.  Recommended usage: onfocus="clearDefaults(this.id);" 
 	
	This funtion will clear a field when a user interacts with it, only if "[" is the first character.
	This should prevent the field from reclearing if they would like to edit it.
 */

 var globalTempValue = "";
 var globalTempID = "";


function clearDefaults(fieldName){
 
  var re = /^[\[]/;
  
  // for the onblur action, if the field is empty.
  if(document.getElementById(fieldName).value == '' && document.getElementById(fieldName).id == globalTempID && globalTempValue.match(re)){
   document.getElementById(fieldName).value = globalTempValue;
  
  // for the onfocus action.
  } else {
   globalTempValue = document.getElementById(fieldName).value;
   globalTempID = document.getElementById(fieldName).id;
   
   if((document.getElementById(fieldName).value.match(re)))
     document.getElementById(fieldName).value = "";
  }
 }