// generate random number for images
imgNum = Math.ceil(Math.random()*4);
locationVal = "";
// copyright value
copyright = "© 2006 Maritime Trust Company";
// image rollover
function rollImg(which,state){
	if(state==1){
		stateVal = "a";
	}else{
		stateVal = "i";
	}
	document[which].src = prefix+"images/"+which+"_"+stateVal+".gif";
}

// arrow rollover
function rollArrow(which,state){
	if(state==1){
		stateVal = "visible";
	}else{
		stateVal = "hidden";
	}
	document.getElementById("arrow"+which).style.visibility = stateVal;
}

function moveFooter(){
	if(locationVal == "landing"){
		footerSpace = 380;
	}else{
		footerSpace = 170;
	}
	//alert(footerSpace+document.getElementById("contentArea").offsetHeight);
	if(footerSpace+document.getElementById("contentArea").offsetHeight > 380){
		document.getElementById("globalNavFooter").style.top = (footerSpace+document.getElementById("contentArea").offsetHeight) +"px";
	}
	document.getElementById("globalNavFooter").style.visibility = "visible";
}

function openPop(which,num,start){
	if(start!=null){
		startImg = start;
	}else{
		startImg = 1;
	}
	leftVal = eval(screen.availWidth/2)-380;
	topVal = eval(screen.availWidth/2)-410;
	
	window.open('http://www.portgardnerwharf.com/pop.php?category='+which+'&thumbNum='+num+'&startImg='+startImg+'','','left='+leftVal+',top='+topVal+',width=760,height=410,resizable=0,scrollbars=0')
}