// configuration parameters
var sg_iframe_size = 'width="336" height="282"';
var sg_iframe_params = 'frameborder="0" scrolling="no" allowtransparency="true"';



 var widgetURL = 'http://d1.skygrid.com/js17/000.3/widget.html?';

// sg_iframe_src is iframe source URL data
var sg_iframe_src = widgetURL;

// sg_widget_symbol specifies the content type
try{
   sg_my_symbol = sg_widget_symbol;
   sg_my_symbol_str = 'sg_widget_symbol=' + sg_my_symbol;
   sg_iframe_src += sg_my_symbol_str;
}catch(err)
{}

// skygrid_widget_feed specifies feed name
try{
    sg_my_feed = skygrid_widget_feed;
    sg_my_feed_str = '&skygrid_widget_feed=' + sg_my_feed;
    sg_iframe_src += sg_my_feed_str;
}catch(err)
{}

sg_my_large = null;
//sg_widget_large specifies target mega page
try{
 sg_my_large = sg_widget_large;
}catch(err)
{}

//sg_large_url specifies target mega page (priority over sg_widget_large)
try{
 sg_my_large = sg_large_url;
}catch(err)
{}

if (sg_my_large != null) {
sg_my_large_str = '&fullPageLink=' + escape(sg_my_large);
sg_iframe_src += sg_my_large_str;
}

// sg_large_content specifies content of the mega page
try{
    sg_my_content = sg_large_content;
    sg_my_content_str = '&sg_large_content=' + sg_my_content;
    sg_iframe_src += sg_my_content_str;
}catch(err)
{}

// sg_mainpage_url passes through main page URL
try{
    sg_my_window = window.location.href;
    sg_my_window_str = '&sg_mainpage_url=' + escape(sg_my_window);
    sg_iframe_src += sg_my_window_str;
}catch(err)
{}

// compose the iframe string
var sg_iframe_data = '<iframe id="sg_frame" src ="' + sg_iframe_src + '" ' +
    sg_iframe_size + ' ' + sg_iframe_params + '></iframe>';

// add the iframe to the dom
document.write(sg_iframe_data);