function refresh_image()
{
var array_imgs = new Array("aat.png", "bus_signage.png", "tram2.png", "townsend_signs_ute.png", "van_signage.png", "stinga.png", "alibaba.png", "australia_wide.png", "townsend_signs.png" );
	var index = randomToN(array_imgs.length -1);
 
    document.getElementById("container").style.backgroundImage = "url(images/" + array_imgs[index] + ")";
	
}

function refresh_image_home()
{
	var array_imgs = new Array("aat.png", "bus_signage.png", "tram2.png", "townsend_signs_ute.png", "van_signage.png", "stinga.png", "alibaba.png", "australia_wide.png", "townsend_signs.png" );
	var index = randomToN(array_imgs.length -1);
 
    document.getElementById("container").style.backgroundImage = "url(images/" + array_imgs[index] + ")";

    var array_headings = new Array("Get your brand moving. Townsend Signs.", "Wipe out your competition. Townsend Signs.", "For a sign you can't miss. Townsend Signs.", "Striking signage. Townsend Signs.", "Stand out around town. Townsend Signs.", "Make a bigger splash. Townsend Signs.", "Your name on everybody's lips. Townsend Signs.", "We've got Australia covered. Townsend Signs.", "Get a hot new look. Townsend Signs.");  
	document.getElementById("home_header").innerHTML = array_headings[index];

}

function randomToN(maxVal,floatVal)
{   var randVal = Math.random()*maxVal;   
    return typeof floatVal=='undefined'?Math.round(randVal):randVal.toFixed(floatVal);
}