JS how to determine whether the contents of the FCK editor is empty

Source: Internet
Author: User
Keywords Web page production Ajax javascript
Tags ajax content editor file how to it is javascript return

Because the FCK editor differs from other TEXTAREA file input boxes, it is not the same that all of them should be judged to be empty.

var oeditor = fckeditorapi.getinstance (' content '); The content here is the ID value of the FCK
if (GetLength ("content") <=0) {
Alert (' content cannot be empty! ');
Oeditor.focus ();
return false;
}


function GetLength (str) {
var oeditor = fckeditorapi.getinstance (str);
var checkcontent= oeditor.editordocument;
var contentlength;
if (document.all) {
Contentlength= Checkcontent.body.innertext.trim (). length;
}
else{
var r = Checkcontent.createrange ();
R.selectnodecontents (Checkcontent.body);
Contentlength= r.tostring (). Trim (). length;
}
return contentlength;
}
Remove whitespace from a string

String.prototype.trim = function ()
{
Return This.replace (^[s]*) | ( [s]*$) G, "");
}

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