<!-------------
//popisky
function VisibleText(nadpistext) {
        document.getElementById(nadpistext).style.visibility= "visible";
}
function UnVisibleText(nadpistext) {
        document.getElementById(nadpistext).style.visibility= "hidden";
}

function HideIt() {
        document.getElementById('required').style.visibility= "hidden";
        document.getElementById('requiredtext').style.visibility= "hidden";
}

function CheckEmptyField( theField, theMessage ) {
   if( theField.value=="" ) {
      theField.focus();
      if(document.getElementById) {
        document.getElementById('required').style.visibility= "visible";
        document.getElementById('requiredtext').style.visibility= "visible";
        document.getElementById('requiredtext').innerHTML= theMessage;
        setTimeout( "HideIt()",1500);
      } else {
          alert(theMessage);
      }
      return false;
   } else {
      return true;
   }
}

function Validate(theForm) {
  if( !CheckEmptyField(theForm.t_front,"FRONT TEXT must be filled!!!") ) return false;
  if( !CheckEmptyField(theForm.t_back_1,"1 BACK TEXT must be filled!!!") ) return false;
  if( !CheckEmptyField(theForm.t_back_2,"2 BACK TEXT must be filled!!!") ) return false;
  if( !CheckEmptyField(theForm.b_pozadi,"BACKGROUND COLOR must be filled!!!") ) return false;
  if( !CheckEmptyField(theForm.b_text,"TEXT COLOR must be filled!!!") ) return false;
  if( !CheckEmptyField(theForm.url,"DESTINATION URL must be filled!!!") ) return false;

  // uspech
  return true;
}


//