wysiwyg help

i have this code

[CODE]function blockformat(tag) {
if(document.selection){
var Editor = document.getElementById(‘iView’).contentWindow.document;
var range = Editor.selection.createRange();
if (range.pasteHTML) {
var content=Editor.selection.createRange().htmlText;
content1=”<“+tag+”>”+content+”</”+tag+”>”;
range.pasteHTML(content1);
}
} else if (window.getSelection) {
var Editor = document.getElementById(‘iView’).contentWindow;
var range = Editor.getSelection().getRangeAt(0);
content1=”<“+tag+”>”+range+”</”+tag+”>”;
getIFrameDocument(‘iView’).execCommand(‘insertHTML’,false, content1);
}
}[/CODE]

the code get tag like “div” and insert into my wysiwyg the text that marked between the got tags.

to example
blockformat(‘div’);

not in my wysiwyg iframe there is ” <div>blabla</div>”
now i want that if i clicked again
the tags are remove
like a
execcommand
if i click bold one time its make the text bold and second time its remove the bold

tnx …

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