var link_path  = "/";

function getRandom_sum(nums_sum)
{
    var ranNum_sum= Math.round(Math.random()*nums_sum);
    return ranNum_sum;
}

// Tells us how many images we have available.
var numberOfImages_sum = 5;
var randomNumber_sum = getRandom_sum(numberOfImages_sum);

// Create an array to hold the names of all images.
var sum_image = new Array(numberOfImages_sum);
sum_image[0]= link_path+"images/wrapper/left-col-img1.jpg";
sum_image[1]= link_path+"images/wrapper/left-col-img2.jpg";
sum_image[2]= link_path+"images/wrapper/left-col-img3.jpg";   
sum_image[3]= link_path+"images/wrapper/left-col-img4.jpg";
sum_image[4]= link_path+"images/wrapper/left-col-img5.jpg";
sum_image[5]= link_path+"images/wrapper/left-col-img6.jpg";