//Random images used on Home page

function autoMenu(formMenu){
  var URL = document.formMenu.menu.options[document.formMenu.menu.selectedIndex].value;
  window.location.href = URL;
} 

var picture = new Array(
// "Banner image name" | "Banner url"
'delta_inst1a|delta',
'delta_inst1b|delta',
'gabion1|gabion',
'gabion2|gabion',
'gabion3|gabion',
'gabion4|gabion',
'gabion5|gabion',
'gt_21|geotextile',
'guard1|guardrail',
'guard2|guardrail',
'guard3|guardrail',
'hdpe1|lin_hdpe',
'hdpe_wwtp|lin_hdpe',
'kerb1|kerb',
'kerb2|kerb',
'lin_inst1a|lin_1pc',
'lin_inst1b|lin_1pc',
'lin_inst1c|lin_1pc',
'lin_inst2a|lin_1pc2',
'lin_inst2b|lin_1pc2',
'lin_inst2c|lin_1pc2',
'rock_net|rockfallnet',
'sedim1|sediment',
'steel_pipe1|roladuct',
'steel_pipe2|roladuct',
'steel_pipe3|roladuct',
'textile1|geotextile',
'textile2|geotextile',
'water_meter|water_meter'
);
var this_pic = 0;
var pic_length = picture.length;
var site_link = "";
function random_pic() {
  if(document.images) {
    random_pic = Math.floor(Math.random() * pic_length);
    var pic_image = picture[random_pic];
    pic_split = pic_image.split("|");
    document.home_picture.src = "images\/" + pic_split[0] + ".jpg";
    this_pic = picture[random_pic];
  };
}
function pic_location() {
  document.location.href = site_link + pic_split[1] + ".html";
}