function GetElem(idOrName){ return document.getElementById(idOrName);}

function ShowElem(id){
	var obj = document.getElementById(id);
	if (obj) if ('none' == obj.style.display) obj.style.display = '';
}
function HideElem(id){
	var obj = document.getElementById(id);
	if (obj) if ('none' != obj.style.display) obj.style.display = 'none';
}
function SetStyleElem(id, stlName){
	var obj = document.getElementById(id);
	if (obj) if (stlName != obj.className) obj.className = stlName;
}

function IsElemPressed(obj){
	if (obj) return (obj.pressed==true);
	return false;
}
function SetElemPressed(obj, im, press){
	if (obj){
		obj.pressed = press;
		if (press) obj.src=im+'_on.gif'; else obj.src=im+'_off.gif';
	}
}
function SwitchElemPressed(obj, im){
	if (obj){
		SetElemPressed(obj, im, !IsElemPressed(obj));
	}
}

function SelectElem(id){
	var obj = document.getElementById(id);
	if (obj) obj.style.border="1px solid #6D8596";
}
function UnSelectElem(id){
	var obj = document.getElementById(id);
	if (obj) obj.style.border="1px solid #CDD5DB";
}