Javascript String Replace similar to Php string Replace in repeated words

var str="Welcome-To-Hiox-Softwares-Pvt-Ltd";

document.write(str.replace("-"," "));

String.prototype.replaceAll = function(strTarget,strSubString){

var strText = this;

var intIndexOfMatch = strText.indexOf( strTarget );

while (intIndexOfMatch != -1){

      strText = strText.replace( strTarget, strSubString )

      intIndexOfMatch = strText.indexOf( strTarget );

}

return( strText );

}

strReplaceAll2 = str.replaceAll( "-", " " )

alert( strReplaceAll2 );