var isIE = function(ver){
var b = document.createElement('b')
b.innerHTML = '<!--[if IE ' + ver + ']><i></i><![endif]-->'
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}
var isIE = function(ver){
var b = document.createElement('b')
b.innerHTML = '<!--[if IE ' + ver + ']><i></i><![endif]-->'
return b.getElementsByTagName('i').length === 1
}