Find out cmyk values used in active artboard

Hi

Any one help me to find the cmyk values used in active artboar

i have a script with shows only for selected object but i want to findout for all the object present in artboard

here is my script for selected object

var doc= app.activeDocument;
var L=docRef.pageItems.length;

for (i=0;i<L;i++)
{
     myItem=doc.pathItems;
        
          if (myItem.fillColor=="[CMYKColor]" && myItem.selected)
          {
               var c=myItem.fillColor.cyan;

               var m=myItem.fillColor.magenta;
               var y=myItem.fillColor.yellow;
               var k=myItem.fillColor.black;
               alert ("pathItem number:"+i+" \n cyan: "+c+" \n magenta: "+m+" \n yellow: "+y+" \n black: "+k);
           }
  }

anyone please help me to modify this script to find out all the objects cmyk values without alert window

it would be helpful if cmyk values written outside the artboard eg c=10 m=20 y=50 k=0 like this for all the objects

Thank you

Appu