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dhtmlxTree setItemStyle function is additive

API of dhtmlxTree povides this function :

dhtmlXTreeObject.prototype.setItemStyle=function(itemId,style_string){
var temp=this._globalIdStorageFind(itemId);
if (!temp) return 0;
if (!temp.span.style.cssText)
temp.span.setAttribute("style",temp.span.getAttribute("style")+"; "+style_string);
else
temp.span.style.cssText+=(";"+style_string);
}

Thing is, it is designed as an additive function as you can only add extra Css rules and not reset those rules.
Might modify this function to this :

dhtmlXTreeObject.prototype.setItemStyle=function(itemId,style_string,resetCss){
var resetCss= resetCss|| false;
var temp=this._globalIdStorageFind(itemId);
if (!temp) return 0;
if (!temp.span.style.cssText)
temp.span.setAttribute("style",temp.span.getAttribute("style")+"; "+style_string);
else
temp.span.style.cssText = resetCss? style_string : temp.span.style.cssText+";"+style_string;
}

Thus, function is still retro-compatible and have a new feature.

Hello guys,

Just a reminder that latest revision of the dhtmlxTree.js code I'm using (v.2.1 build 90226) doesn't include modification of the setItemStyle method.