function validateForm( form ) { var errors = new Array(); // If "Can Move" is enabled, then the end user must also select at least one of the other check boxes (excluding Can Move Diagonally) if ( form.elements['newControl[CanMove]'].checked ) { if ( !(form.elements['newControl[CanMoveCon]'].checked || form.elements['newControl[CanMoveRel]'].checked || form.elements['newControl[CanMoveAbs]'].checked || form.elements['newControl[CanMoveMap]'].checked) ) { errors[errors.length] = "In addition to \"Can Move\", you also must select at least one of: \"Can Move Mapped\", \"Can Move Absolute\", \"Can Move Relative\", or \"Can Move Continuous\""; } } else { // Now lets check for the opposite condition. If any of the boxes below Can Move are checked, but Can Move is not checked then signal an error if ( form.elements['newControl[CanMoveCon]'].checked || form.elements['newControl[CanMoveRel]'].checked || form.elements['newControl[CanMoveAbs]'].checked || form.elements['newControl[CanMoveMap]'].checked || form.elements['newControl[CanMoveDiag]'].checked ) { errors[errors.length] = "\"Can Move\" must also be selected if any one of the movement types are sleceted"; } } if ( errors.length ) { alert( errors.join( "\n" ) ); return( false ); } return( true ); }