Help otimizing script

This is quite a rookie question as I am, please show me how I can optimize this code without writing the same over and over??


mc1.addEventListener(MouseEvent.CLICK, Click1);
mc2.addEventListener(MouseEvent.CLICK, Click2);
mc3.addEventListener(MouseEvent.CLICK, Click3);
mc4.addEventListener(MouseEvent.CLICK, Click4);
function Click1 (evt:MouseEvent):void{
 mc1.alpha=0;
 mc2.x=350;
 mc2.width=25;
 mc2.alpha=1;
 mc3.x=375;
 mc3.width=25;
 mc3.alpha=1;
 mc4.x=400;
 mc4.width=25;
 mc4.alpha=1;
 
 };
 function Click2 (evt:MouseEvent):void{
 mc2.alpha=0;
 mc1.x=0;
 mc1.width=25;
 mc1.alpha=1;
 mc3.x=375;
 mc3.width=25;
 mc3.alpha=1;
 mc4.x=400;
 mc4.width=25;
 mc4.alpha=1;
 
 };
 function Click3 (evt:MouseEvent):void{
 mc3.alpha=0;
 mc1.x=0;
 mc1.width=25;
 mc1.alpha=1;
 mc2.x=25;
 mc2.width=25;
 mc2.alpha=1;
 mc4.x=400;
 mc4.width=25;
 mc4.alpha=1;
 
 };
 function Click4 (evt:MouseEvent):void{
 mc4.alpha=0;
 mc2.x=25;
 mc2.width=25;
 mc2.alpha=1;
 mc3.x=50;
 mc3.alpha=1;
 mc3.width=25;
 mc1.x=0;
 mc1.width=25;
 mc1.alpha=1;
 
 };