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取得浏览器的文档类型

2011-05-07 09:53 127 查看
var DOCTYPE = "",doctype;
if((doctype = document.doctype)) {
DOCTYPE += '<!DOCTYPE ' + doctype.name +(doctype.publicId ? (' '+doctype.publicId+ ' "' + doctype.systemId + '">')  :'>')
}else if((doctype = document.getElementsByTagName("!")[0])){
DOCTYPE = doctype.text;
}
alert(DOCTYPE);


var DOCTYPE = "",doctype;
if((doctype = document.doctype)) {
DOCTYPE += '') :'>')
}else if((doctype = document.getElementsByTagName("!")[0])){
DOCTYPE = doctype.text;
}
alert(DOCTYPE);

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