getURL problem

1

I’ve tried linking to a website in Flash MX 2004 and I got this problem during Actionscripting:

on (release) }
	getURL ("http://www.planetside.co.uk", "_blank", "PLANETSIDE");
}

and heres the Error message when previewing:

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 1: Mouse events are permitted only for button instances
     on (release) 

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 3: Method name must be GET or POST
     		getURL ("http://www.planetside.co.uk", "_blank", "PLANETSIDE");

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 2: Statement block must be terminated by '}'
     {

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 4: Syntax error.

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 1: String literal was not properly terminated
     getURL("http://www.planetside.co.uk);

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 2: ')' or ',' expected

**Error** Scene=Scene 1, layer=planetside button, frame=1:Line 1: Statement must appear within on handler
     getURL("http://www.planetside.co.uk);

Total ActionScript Errors: 7 	 Reported Errors: 7

can someone please help me? thanks.