Skype code hack?

After upgrading to 2.3.1 <via Dreamhost> I found this Skype code embedded on one of the blog’s static pages that had a phone number (marked here as “x”). How did this get here? What should I do, besides removing it? -Amy

<span context="(xxx) xxx-xxxx" durex="625" onmouseout="javascript:skype_tb_imgOnOff(this,0,'1',true,16,'');" onclick="javascript:doRunCMD('call','1',null,0);return skype_tb_stopEvents();" title="Call this phone number in United States of America with Skype: +xxxxxxxxxx" onmouseover="javascript:skype_tb_imgOnOff(this,1,'1',true,16,'');" id="softomate_highlight_1" onmousedown="javascript:skype_tb_imgOnOff(this,2,'1',true,16,'');return skype_tb_stopEvents();" oncontextmenu="javascript:skype_tb_SwitchDrop(this,'1','sms=0');return skype_tb_stopEvents();" class="skype_tb_injection" onmouseup="javascript:skype_tb_imgOnOff(this,1,'1',true,16,'');return skype_tb_stopEvents();"></span><span onmouseout="javascript:doSkypeFlag(this,'1',0,1,16);" onclick="javascript:doHandleChdial(this,1,'1',1);return skype_tb_stopEvents();" title="Change country code ..." onmouseover="javascript:doSkypeFlag(this,'1',1,1,16);" id="skype_tb_droppart_1" onmousedown="javascript:doSkypeFlag(this,'1',2,1,16);return skype_tb_stopEvents();" class="skype_tb_imgA" onmouseup="javascript:doSkypeFlag(this,'1',1,1,16);return skype_tb_stopEvents();"></span><span id="skype_tb_img_f1" class="skype_tb_imgFlag"></span><span id="skype_tb_img_s1" class="skype_tb_imgS"></span><span id="skype_tb_text1" class="skype_tb_injectionIn"></span><span id="skype_tb_innerText1" class="skype_tb_innerText">(800) 889-6484</span><span id="skype_tb_img_r1" class="skype_tb_imgR"></span>