var scroll = false;

function crypt(c){
	return String.fromCharCode((c<="Z"?90:122)>=(c=c.charCodeAt(0)+13)?c:c-26);
}

function getHeight(obj) {
	var divHeight;
	if(obj.offsetHeight) {
		divHeight = obj.offsetHeight;
	}
	else if(obj.style.pixelHeight) {
		divHeight = obj.style.pixelHeight;
	}
	return divHeight;
}

function scrollUp() {
	var outerScroll = document.getElementById("outerScrollDiv");

    if (outerScroll.scrollTop - 5 <= 0) {
    	outerScroll.scrollTop = 0;
    } else {
	   outerScroll.scrollTop -= 5;
    }
	if(scroll) {
		setTimeout("scrollUp()", 25);
	}
}

function scrollDown() {
	var outerScroll = document.getElementById("outerScrollDiv");
	outerScroll.scrollTop += 5;
    if(scroll) {
        setTimeout("scrollDown()", 25);
    }
}

function hopDown() {
	var outerScroll = document.getElementById("outerScrollDiv");
	outerScroll.scrollTop += 300;
}
function hopUp() {
	var outerScroll = document.getElementById("outerScrollDiv");
	if (outerScroll.scrollTop - 300 <= 0) {
        outerScroll.scrollTop = 0;
    } else {
       outerScroll.scrollTop -= 300;
    }
}

function prepare() {
	var outerScroll = document.getElementById("outerScrollDiv");
	var innerScroll = document.getElementById("innerScrollDiv");
	var innerHeight = getHeight(innerScroll);
	var outerHeight = getHeight(outerScroll);
	
	outerScroll.style.overflow = "hidden";
	//outerScroll.style.setProperty('overflow','hidden', '');
	outerScroll.style.overflowY = "hidden";

	
	if( innerHeight > outerHeight ) {
		document.getElementById("upArrow").style.display = "block";
	}
}

function prepare1() {
	
	var outerScroll1 = document.getElementById("outerScrollDiv1");
	var innerScroll1 = document.getElementById("innerScrollDiv1");
	
	var innerHeight1 = getHeight(innerScroll1);
	var outerHeight1 = getHeight(outerScroll1);
	
	
	outerScroll1.style.overflow = "hidden";
	//outerScroll.style.setProperty('overflow','hidden', '');
	outerScroll1.style.overflowY = "hidden";

	
	
}