finding the content of a prim

Is there a scripting way to see if a prim has a notecard and/or Texture in it's content and if so how can you replace it with another?

Yep I looked there - always check Wiki first but it didn't make a lot of sense. However I came up with the following which seems to do the trick:

string whattocheck= "";

default
{

touch_start(integer total_number)
{
whattocheck = (llGetInventoryName (INVENTORY_NOTECARD, 0) );

while(whattocheck != ""
{
llSay(0, "I have removed notecard named " + whattocheck + " from my contents.";
llRemoveInventory(whattocheck);
whattocheck = (llGetInventoryName (INVENTORY_NOTECARD, 0) );
}

llSay(0, "Please drag and drop your new notecard into the prim";
}
}