function InstaCalcWidget(){
if ( typeof(__instacalc_url) == 'undefined' ) { __instacalc_url = ""; } 
if ( typeof(__instacalc_height) != 'number' ) { __instacalc_height = 350; }
if (__instacalc_height < 0 ) { __instacalc_height = 350; };

// extract url params

//var params = getURLParams(instacalc_embed_url);

var final_height;
var final_width

if ( typeof(instacalc_embed_height) == 'undefined' ) { final_height = 300; } else {final_height = instacalc_embed_height; }
if ( typeof(instacalc_embed_width) == 'undefined' ) { final_width = 425; } else {final_width = instacalc_embed_width; }

var params = instacalc_embed_url.split("?")[1]; // everything to right of first question mark

var embedurl = 'http://instacalc.com/embed/?' + params;
var iframehtml = '<iframe width="425" height="' + final_height + '" width="' + final_width + '" frameborder="0" src="' + embedurl + '"></iframe>';

  document.write(iframehtml);
}

InstaCalcWidget();