How can I simplify the code in this situation?

I want to control the alpha in different situdation and I have many objects that I need to control. Here is the code. How can I simipfy the code on below?

var alp:Number=0.3;

relationship.arc1.addEventListener(MouseEvent.CLICK, onRelat1);

function onRelat1 (evt:MouseEvent):void{

    relationship.blueL1.alpha=1;

          relationship.blueL2.alpha=1;

          relationship.blueL3.alpha=alp;

          relationship.blueL4.alpha=alp;

          relationship.pinkL1.alpha=alp;

          relationship.pinkL2.alpha=1;

          relationship.pinkL3.alpha=alp;

          relationship.pinkL4.alpha=alp;

          relationship.yellowL1.alpha=alp;

          relationship.yellowL2.alpha=alp;

          relationship.yellowL3.alpha=alp;

          relationship.orangeL1.alpha=1;

          relationship.orangeL2.alpha=alp;

          relationship.orangeL3.alpha=alp;

          relationship.orangeL4.alpha=1;

          relationship.redL1.alpha=alp;

          relationship.businessOwners.alpha=1;

          relationship.sexWorkers.alpha=1;

          relationship.drugAddicts.alpha=alp;

          relationship.workers.alpha=1;

          relationship.tourists.alpha=1;

          relationship.security.alpha=alp;

          relationship.domestic.alpha=alp;

          relationship.traders.alpha=1;

          relationship.seekers.alpha=1;

}

relationship.arc2.addEventListener(MouseEvent.CLICK, onRelat2);

function onRelat2 (evt:MouseEvent):void{

    relationship.blueL1.alpha=alp;

          relationship.blueL2.alpha=alp;

          relationship.blueL3.alpha=alp;

          relationship.blueL4.alpha=alp;

          relationship.pinkL1.alpha=1;

          relationship.pinkL2.alpha=1;

          relationship.pinkL3.alpha=1;

          relationship.pinkL4.alpha=1;

          relationship.yellowL1.alpha=1;

          relationship.yellowL2.alpha=alp;

          relationship.yellowL3.alpha=alp;

          relationship.orangeL1.alpha=alp;

          relationship.orangeL2.alpha=alp;

          relationship.orangeL3.alpha=alp;

          relationship.orangeL4.alpha=alp;

          relationship.redL1.alpha=alp;

          relationship.businessOwners.alpha=1;

          relationship.sexWorkers.alpha=1;

          relationship.drugAddicts.alpha=alp;

          relationship.workers.alpha=1;

          relationship.tourists.alpha=alp;

          relationship.security.alpha=alp;

          relationship.domestic.alpha=alp;

          relationship.traders.alpha=1;

          relationship.seekers.alpha=1;

}

relationship.arc3.addEventListener(MouseEvent.CLICK, onRelat3);

function onRelat3 (evt:MouseEvent):void{

    relationship.blueL1.alpha=alp;

          relationship.blueL2.alpha=alp;

          relationship.blueL3.alpha=alp;

          relationship.blueL4.alpha=alp;

          relationship.pinkL1.alpha=alp;

          relationship.pinkL2.alpha=alp;

          relationship.pinkL3.alpha=alp;

          relationship.pinkL4.alpha=alp;

          relationship.yellowL1.alpha=alp;

          relationship.yellowL2.alpha=1;

          relationship.yellowL3.alpha=alp;

          relationship.orangeL1.alpha=alp;

          relationship.orangeL2.alpha=alp;

          relationship.orangeL3.alpha=alp;

          relationship.orangeL4.alpha=alp;

          relationship.redL1.alpha=alp;

          relationship.businessOwners.alpha=alp;

          relationship.sexWorkers.alpha=alp;

          relationship.drugAddicts.alpha=1;

          relationship.workers.alpha=alp;

          relationship.tourists.alpha=alp;

          relationship.security.alpha=1;

          relationship.domestic.alpha=alp;

          relationship.traders.alpha=alp;

          relationship.seekers.alpha=alp;

}