var winIEstylesheet = "/tt/css/tt_win.css" ;
var macIEstylesheet = "/tt/css/tt_mac.css" ;

if(BC_isMac()) {
	document.write("<link rel=\"stylesheet\" href=\"" + macIEstylesheet + "\"type= \"text/css\">");
}
else {
	document.write("<link rel=\"stylesheet\" href=\"" + winIEstylesheet + "\"type= \"text/css\">");
}

function BC_isMac() {
	if(navigator.appVersion.indexOf('Mac') != -1){
		return true;
	}
	else {
		return false;
	}
}

function BC_isWin() {
	if(navigator.appVersion.indexOf('Win') != -1){
		return true;
	}
	else {
		return false;
	}
}

function BC_maximizeHeight(resizeObjName) {
	if(BC_isMac()) {
		setTimeout("_maximizeHeightForMac('" + resizeObjName + "')", 1);
	}
	else {
		if(document.all.item(resizeObjName).style.height != '100%') {
			document.all.item(resizeObjName).style.height = '100%';
		}
	}
}

function _maximizeHeightForMac(resizeObjName) {
	var resizeObj = document.all.item(resizeObjName);
	var parentObj = resizeObj.offsetParent;
	resizeObj.style.height = 0;
	resizeObj.style.height = parentObj.offsetHeight - 18;
}