extend script is not working in photoshop but working fine in illustrator

function fillcolor(a,b,c,name){
Path_Count=0;
var index;
var thisPageItem;
var doc=app.activeDocument;
doc.selection = null;
var thisLayer;
var DocLayersLength=doc.layers.length;
for(var i=0;i<DocLayersLength;i++)
{
if(doc.layers[i].name==name)
{
index=i;
break;

}
}
if(doc.layers[index].groupItems.length>0 && doc.layers[index].pageItems[0].name !="Clipped_Group"){
ExpendFunction(index,0);
}
if(doc.layers[index].pageItems[0].name!="Clipped_Group"){
for(var j=0;j<doc.layers[index].pageItems.length;j++){
Path_Count++;
var p = doc.layers[index].pageItems[j];
if(p.typename=="CompoundPathItem"){
p.pathItems[0].fillColor=makeColor(a,b,c);
p.strokeColor=makeColor(0,0,0);
exportFileToJPEG();
}else{
p.fillColor = makeColor(a,b,c);
p.strokeColor=makeColor(0,0,0);
exportFileToJPEG();
}
}
} else{
var grplen=doc.layers[index].groupItems.length;
for(var j = 0; j <grplen; j++){
Path_Count++;
/*******Remove Image Clipping.******************/
var NewGroup=doc.layers[index].groupItems[j];
NewGroup.placedItems.removeAll();
/***********************************************/
if(NewGroup.pageItems[0].typename=="CompoundPathItem"){
NewGroup.pageItems[0].pathItems[0].fillColor=makeColor(a,b,c);
NewGroup.pageItems[0].pathItems[0].strokeColor=makeColor(0,0,0);
exportFileToJPEG();
}else{
NewGroup.pathItems[0].fillColor = makeColor(a,b,c);
NewGroup.pathItems[0].strokeColor=makeColor(0,0,0);
exportFileToJPEG();
}
}

}
return Path_Count;
}