JavaScript Help

Hi there, Could someone help me correctly write a javascript. What i want to do is get the layers to switch between themselves when another layer is toggled on. So when toggling through the layers they don't all stay on but rather switch between them.

This is the script I have so far,

var docOCGs = this.getOCGs();

for (var x=0; x < docOCGs.length; x++)

{

          if(docOCGs.name == "Layer 1" ||

     docOCGs.name == "Layer 1")

          {

                    docOCGs.state = !docOCGs.state;

          }

}

Thank you.