function getItmidiaWidget(params){
    if(params.canal=='itweb') url="http://itweb.com.br/widget.html"
    else if(params.canal=='saudeweb') url="http://saudeweb.com.br/widget.html"
    else if(params.canal=='informationweek') url="http://informationweek.itweb.com.br/widget.html"
    else if(params.canal=='crn') url="http://crn.itweb.com.br/widget.html";
    else url=false;
    
    width=params.w;
    if(!width.match(/^(([1-9][0-9]*)|(100\%))?$/)) width=false;
    
    height=params.h;
    if(!height.match(/^[1-9][0-9]*$/)) height=false;
    
    if((url)&&(width)&&(height)){
        document.write('<iframe src="'+url+'" scrolling="no" frameBorder="0" width="'+width+'" height="'+height+'"></iframe>');
    }
    
}