function rand_num(num) {
    var now = new Date();                                 
    var rand = Math.round(num * Math.cos(now.getTime())); 
    if (rand < 0) rand = - rand; if (rand == 0) rand++;         
    return rand;
    }

function open_dir(webname)
	{
	dirUrl = "directions.asp?name=" + webname
	window.open(dirUrl, "directions", "height=300,width=300")
	}

function open_desc(key)
	{
	dirUrl = "awarddescription.asp?key=" + key
	window.open(dirUrl, "directions", "height=300,width=300")
	}

function load_nav() 
	{
    navSculpture1=new Image(); navSculpture1.src="images/nav/sculpture_on.gif"
	navSculpture0=new Image(); navSculpture0.src="images/nav/sculpture_off.gif"
	navJewelry1=new Image(); navJewelry1.src="images/nav/jewelry_on.gif"
	navJewelry0=new Image(); navJewelry0.src="images/nav/jewelry_off.gif"
	navHome1=new Image(); navHome1.src="images/nav/home_on.gif"
	navHome0=new Image(); navHome0.src="images/nav/home_off.gif"
	}

function nav_on(img){
	if (img=="sculpture") {
		document.images["nav_sculpture"].src=navSculpture1.src; 
		}
	if (img=="jewelry") {
		document.images["nav_jewelry"].src=navJewelry1.src;
		}
	if (img=="main") {
		document.images["nav_main"].src=navHome1.src;
		}

}

function nav_off(img){
	if (img=="sculpture") {
		document.images["nav_sculpture"].src=navSculpture0.src; 
		}
	if (img=="jewelry") {
		document.images["nav_jewelry"].src=navJewelry0.src;
		}
	if (img=="main") {
		document.images["nav_main"].src=navHome0.src;
		}

}

function openPopUp(file){
		newWin = window.open(file, '', 'width=460,height=500,scrollbars=yes');
}