function jumpTo(form) {
	var fluID = new Date().getTime(); // unique ID to name popup
	var numSelections=form.selectedIndex; // number of selections
	str = new String(form.options[numSelections].value); // value of selection
	strarray = str.split(/\,/); // splits value on a comma
	if (strarray[0] != "none") {
	 if (strarray[0] == "same"){ // loads in same window
	 	parent.location.href = strarray[1];
	 	form.selectedIndex = 0;
	 	}else if (strarray[0] == "popup"){// load in popup window
	 		window.open(strarray[1], fluID, "");
	 		form.selectedIndex = 0;
	 }
	}
}

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;



var randnum = Math.random();
var inum = 4;
// Change this number to the number of images you are using.
var rand1 = Math.round(randnum * (inum-1)) + 1;
images = new Array
images[1] = "http://www.karlmendonca.com/images/background/documentproject.jpg"
images[2] = "http://www.karlmendonca.com/images/background/muybridge_lady.gif"
images[3] = "http://www.karlmendonca.com/images/background/background.jpg"
images[4] = "http://www.karlmendonca.com/images/background/washboard00.jpg"
// Ensure you have an array item for every image you are using.
var image = images[rand1]