Compare elements in an array.

[Chaitanya Yanamadala]

hai
i have an hash array with me.
which is some what like this.

'
          '123D3B434829C090.zon' => {
                                      '6' => {
                                               'headline' => 'Lambertville
Girl Is Stationed At Prague'
                                             },
                                      '4' => {
                                               'headline' => 'Common Origin
Of Distinct Tongues Many Bengal Words Shown to be Related to Our English'
                                             },
                                      'ivalue' => 8,
                                      '7' => {
                                               'headline' => 'Will Work
Overtime For Welfare Money'
                                             },
                                      '5' => {
                                               'headline' => 'Famous Astor
Office To Go Under Hammer'
                                             }
                                    },


so in this what i need is some thing compare the values of the headline with
each other. If there is a duplicate i need to find out. So how can i do that
.
Please help


Chaitanya