[jQuery] context-based selection in internet explorer 7 doesn't work

[jQuery] context-based selection in internet explorer 7 doesn't work

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<DIV>h<SPAN class=687474411-01042009>ello!</SPAN></DIV>
<DIV><SPAN class=687474411-01042009></SPAN> </DIV>
<DIV><SPAN class=687474411-01042009>i have a problem with the context-based
selection of elements in a html-string in internet explorer 7.</SPAN></DIV>
<DIV><SPAN class=687474411-01042009></SPAN> </DIV>
<DIV><SPAN class=687474411-01042009>with the following code: </DIV>
<DIV>
<P><SPAN class=687474411-01042009>var </SPAN>htmltmp = '<div style="width:
1100px;"><img src="test.gif" width="300" id="testphoto"
/></div>'; </P>
<P>alert($('#testphoto', htmltmp).attr('width')); </P>
<P>the internet explorer shows "0" and the firefox shows the right "300". </P>
<P><SPAN class=687474411-01042009>has anybody a workaround or the solution why
this doesn't work?</SPAN></P>
<P><SPAN class=687474411-01042009>i`m using jQuery 1.3.2</SPAN></P>
<P><SPAN class=687474411-01042009>thanks for your attention.</SPAN></P>
<P><SPAN class=687474411-01042009>netCo</SPAN></P></SPAN></DIV></BODY></HTML>