Select div not working in safari for Mac.

I have the following:

<select name="country" onChange="javascript:if(this.options[this.selectedIndex].value != 'United Kingdom'){ = 'block';}else{ = 'none';}">
                                          <option>Please select</option>
                          <option value="United Kingdom">United Kingdom</option>

<div id="warning7" style=" display:none;">
my text.

Which works fine in IE and Firefox etc.. but in Safari for Mac the div tag doesn't apear.
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<select name="country" onChange="javascript:if(this.options[this.selectedIndex].value != 'United Kingdom'){ = '';}else{ = 'none';}">
The document.all is IE specific.
You should use document.getElementById instead (that will work even on IE though).

So your SELECT will become :

<select name="country" onChange="javascript:if(this.options[this.selectedIndex].value != 'United Kingdom'){ document.getElementById('warning7').style.display = 'block';}else{document.getElementById('warning7').style.display = 'none';}">
                                          <option>Please select</option>
                      <option value="United Kingdom">United Kingdom</option>

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smaccari is correct. I miss it
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