javascript not defined function

[bilibytes]

hi,
i am getting an error with this script:
"oCk is not defined
onclick(click clientX=0, clientY=0)"

//widget functions
			//1.
				//when the mouse is over a star, we want to change all the stars below to selected stars
				function oMOver(starNum){
					//replace stars
					i=1;
					while(document.getElementById(i) != null){
						if(i <= starNum){
							document.getElementById(i).style.backgroundImage ="url(/images/taken_star.png)";
						}
						else{
							document.getElementById(i).style.backgroundImage ="url(/images/free_star.png)";
						}
					i++;
					}
					//replace span message
					var messg=new Array();
					messg[1]="Crap";
					messg[2]="Still Crap";
					messg[3]="Lost my Time";
					messg[4]="It's worth it";
					messg[5]="Nice!";
					
					document.getElementById("rate_widget").lastChild.innerHTML = messg[starNum];
				}
				
			//1.1
				//when the mouse goes out of the stars div, we want to show the average rate
				function oMOut(actualRate, numRatings){
					i=1;
					while(document.getElementById(i) != null){
						if(i <= actualRate){
							document.getElementById(i).style.backgroundImage ="url(/images/taken_star.png)";
						}
						else{
							document.getElementById(i).style.backgroundImage ="url(/images/free_star.png)";
						}
					i++;
					}
					document.getElementById("rate_widget").lastChild.innerHTML = numRatings+"ratings";
				}
				
				
			//2.
				//when the user click on the selected star submit rating to server
				function oCKStateChange(){
					if(objectXHR.readyState == 4){
						if(objectXHR.status == 200){
						
							//store result
							rWResponse = objectXHR.responseText;
							window.document.getElementById("rate_widget").innerHTML = rWResponse;
						}
					}
					else{
					}
				}
			
				function oCK(starNum){
					var rateSentParameters= "rate="+starNum;
					objectXHR.open("post","../rate.php", true);
					objectXHR.onreadystatechange = oCKStateChange;
					objectXHR.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
					objectXHR.send(rateSentParameters);
				}

is there an error in the function code?
because i can't see it.
or if you are aware of an external reason for this error
please let me know

thank you very much

bilibytes

[acoder]

Where is the oCK function called?

[pradip030384]

You have to defined java script fuction .