var imagenumber = 4 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "images/randomimg/Hammond-Square-1.jpg"
images[2] = "images/randomimg/SWA-Lowes.jpg"
images[3] = "images/randomimg/36-harvey-retail-center.jpg"
images[4] = "images/randomimg/walmartcenter.jpg"


var banner = images[rand1]