javascript - IE8 not recognizing <span class="ui-button-text">? -

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i working on mapping application. following code block works great in ie10, chrome, etc., not ie8. button activates aerial layer, changes text of button "street" (allows use of new overlays button @ point), , toggles if hit "street" button.

btnstreetaerial_click = function () { var isabovethreshold = (map.getscale() > 18055);  if ($("#btnstreetaerial").html() == '<span class="ui-button-text">aerial</span>') {        //switch aerial     if (isabovethreshold) {         map.getlayer(mapesriaeriallayerid).show();     }     else {         map.getlayer(maplocalaeriallayerid).show();     }     map.getlayer(swova.mapstreetid).hide();     $("#btnaerialoverlay").show();     $("#btnstreetaerial").html('<span class="ui-button-text">street</span>'); } else if ($("#btnstreetaerial").html() == '<span class="ui-button-text">street</span>') {      if (isabovethreshold) {         map.getlayer(mapesriaeriallayerid).hide();         map.getlayer(mapoverlay1layerid).hide();         map.getlayer(mapoverlay2layerid).hide();         map.getlayer(mapstreetid).show();     }     else {         map.getlayer(maplocalaeriallayerid).hide();         map.getlayer(mapoverlay1layerid).hide();         map.getlayer(mapoverlay2layerid).hide();         map.getlayer(mapstreetid).show();     }      $("#btnaerialoverlay").hide();     $("#btnstreetaerial").html('<span class="ui-button-text">aerial</span>');     $("#btnaerialoverlay").html('<span class="ui-button-text">add overlay</span>'); }

again, works fine in browsers except ie8, , debug during ie8 won't make past if statement:

if ($("#btnstreetaerial").html() == '<span class="ui-button-text">aerial</span>') {

and button click nothing. so, i'm assuming ie8 doesn't <span class="ui-button-text">?

any info appreciated, thank in advance.


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