$(document).ready(function(){
    var rtd, chk;
    chk = $("#row0");
    if(chk.length==0) { /* row0 doesn't exist. Has to be created. */
        $("#row1").before("<tr id='row0'><td></td><td id='rating1td'></td><td id='rating2td'></td><td></td></tr>");
        for(var i=1, col="#D8ECF3";i<1000;i++) {
            chk =  $("#row"+i);
            if(chk.length==0)
                break;
            chk.css("background-color",col);
            col = (col=="#FFFFFF")? "#D8ECF3":"#FFFFFF";
        }
    }
    rtd = $("#rating1td").html();
    $("#rating1td").html(rtd+getStockChartHTML(ticker1));
    rtd = $("#rating2td").html();
    $("#rating2td").html(rtd+getStockChartHTML(ticker2));
});

function getStockChartHTML(ticker) {
    if (ticker=="")
        return "";
    return "<a href= \"http://finance.yahoo.com/q?s="+ticker+"\" target=\"_diffenref\"><img src=\"http://ichart.finance.yahoo.com/t?s="+ticker+"\"></a>";
}