/* *********************************************
*	Base Scripts for Space Exploration	*
*	Thinkquest Website			*
*  ******************************************** */

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		btn1_over = newImage("images/btn1-over.gif");
		btn2_over = newImage("images/btn2-over.gif");
		btn3_over = newImage("images/btn3-over.gif");
		btn4_over = newImage("images/btn4-over.gif");
		btn5_over = newImage("images/btn5-over.gif");
		btn6_over = newImage("images/btn6-over.gif");
		btn7_over = newImage("images/btn7-over.gif");
		btn8_over = newImage("images/btn8-over.gif");
		preloadFlag = true;
	}
}

function activateLink(status, obj) {
	if (status == "on") {
		obj.style.backgroundColor = HM_PG_BGColorOver;
		obj.style.color = HM_PG_FontColorOver;
		if (HM_IE) { obj.style.cursor = "hand"; }
	}
	else {
		obj.style.backgroundColor = HM_PG_BGColor;
		obj.style.color = HM_PG_FontColor;
		if (HM_IE) { obj.style.cursor = "default"; }
	}
}

function clickLink(url) {
	window.location.href = "index.php?sArticle=articles/" + url;
}

function openWin(sURL, dWidth, dHeight) {
                window.open (sURL, "works", "toolbar=no,location=no,directories=no,status=no,menubar=no,width=" + dWidth + ",height=" + dHeight + ",scrollbars=yes,resizable=no");
}