Map Tip Hyperlinks that open in new browser: HTML 5 vs SL

I have an interactive viewer that works on both Silverlight and HTML 5. In my viewers, we have a piece of configuration codes for pop up windows, that are written in HTML. The code works normally great but moral of the story is that we have links to URL links that should be opening in separate browser windows. I have familiarity with that line of code, target="_blank", as I have used it in previous sites before with great success. Example of code is below:

 

<p><font face="Trebuchet MS">Parcel Owner: {OWNERNAME}<br/>Site Address: {SITUSLINE1}, {SITUSCITY}, {SITUSSTATE} {SITUSZIP}</font><font face="Trebuchet MS"><br/>Assessor's Tax Information: </font><a  href="https://www.snoco.org/proptax/search.aspx?parcel_number={PARCEL_ID}" target="_blank"><font face="Trebuchet MS">Property Account Summary</font></a><br/><font face="Trebuchet MS">Planning and Development:&nbsp;</font><a href="http://www.snoco.org/app/pds/permitstatus/PDS-ParcelList.aspx?PN={PARCEL_ID}"target="_blank"><font face="Trebuchet MS">Permit Information</font></a></p><font face="Trebuchet MS">

 

</font><a href="command:RunWorkflowWithArguments?workflowId=Parcel_Report&amp;ParcelNum={PARCEL_ID}"><font face="Trebuchet MS">Run Parcel Report</font></a><font face="Trebuchet MS">

 

</font><p><img src="http://maps.googleapis.com/maps/api/streetview?size=300x200&amp;location={SITUSLINE1},{SITUSCITY},{SITUSSTATE},{SITUSZIP}amp;fov=90&amp;pitch=-10&amp;sensor=false"/></p>

 

My copy of this that work in SL looks like this but won't open my map tips hyperlinks in a new browser:

 

<p><font face="Trebuchet MS">Parcel Owner: {OWNERNAME}<br/>Site Address: {SITUSLINE1}, {SITUSCITY}, {SITUSSTATE} {SITUSZIP}</font><font face="Trebuchet MS"><br/>Assessor's Tax Information: </font><a  href="https://www.snoco.org/proptax/search.aspx?parcel_number={PARCEL_ID}"><font face="Trebuchet MS">Property Account Summary</font></a><br/><font face="Trebuchet MS">Planning and Development:&nbsp;</font><a href="http://www.snoco.org/app/pds/permitstatus/PDS-ParcelList.aspx?PN={PARCEL_ID}"><font face="Trebuchet MS">Permit Information</font></a></p><font face="Trebuchet MS">

 

</font><a href="command:RunWorkflowWithArguments?workflowId=Parcel_Report&amp;ParcelNum={PARCEL_ID}"><font face="Trebuchet MS">Run Parcel Report</font></a><font face="Trebuchet MS">

 

</font><p><img src="http://maps.googleapis.com/maps/api/streetview?size=300x200&amp;location={SITUSLINE1},{SITUSCITY},{SITUSSTATE},{SITUSZIP}amp;fov=90&amp;pitch=-10&amp;sensor=false"/></p>

 

I have been told by inserting the commands like  target="_blank" rel=”external” it should work but the SL doesn't like this as well. How can i get my HTML code cofigs for my map tips to show up in both my HTML 5 and SL viewers?