changing over all color in photoshop?

[Tigger]

How can I change the overall color of an image, for example if I want to convert the image blue-pic
to something like
red-pic

I know this can be done by photoshop but I just can find it how?

thanks for your help in advance ...

 

[Whoo]

Image -> Adjustments -> Hue/Saturation

 

[Elio]

ye and u can also use gradient maps or photo filters ..

 

[michigan033]

Image -> Adjustments -> Hue/Saturation

 

[Tigger]

Thank you all ...