/*
 * Jos Walrave, Motiv for WSNS
 * Javascript for decoration elements
*/

function setLayerTop(object,y) {
    if (document.all) {
        document.all[object].style.posTop += y
    } else {
        document.all[object].style.top += y
    }
}

function getScreenHeight() {
	var lHeight = document.documentElement.clientHeight; // IE 6+, FireFox..
	if (lHeight == 0) {
		lHeight = document.body.clientHeight; // IE 5.5
	}
	if (lHeight == 0) {
		lHeight = window.innerHeight; // other
	}
	return lHeight;
}

function resizeLeftBand() {
	var lGlobalH = getScreenHeight();
	var lLeftBandDiv = document.getElementById("leftband");
	var lMainContentDiv = document.getElementById("maincontent");
	var lCopyRightDiv = document.getElementById("copyright");
	
	var lLeftBandEH = lLeftBandDiv.offsetHeight + lLeftBandDiv.offsetTop;
	var lMainContentDivEH = lMainContentDiv.offsetHeight + lMainContentDiv.offsetTop;
	var lCopyRightDivH = lCopyRightDiv.offsetHeight;
	
	var lCopyRightHeight = 32;
	
	if (lGlobalH > lLeftBandEH) {
		if (lGlobalH > lMainContentDivEH) {
		    setLayerTop('copyright',lGlobalH-lCopyRightHeight);
		} else {
		    setLayerTop('copyright',lMainContentDivEH-lCopyRightHeight);
		}
	} else {
		if (lLeftBandEH > lMaincontentDivEH) {
		    setLayerTop('copyright',lLeftBandEH-lCopyRightHeight);
		} else {
		    setLayerTop('copyright',lMaincontentDivEH-lCopyRightHeight);
		}
	}
}