function setDisplay(target){
	var obj = setObj(target);
	if((document.getElementById || document.all) && obj.style) {
		obj.style.display = 'block';

	}
}


function clsDisplay(target){
	var obj = setObj(target);
	if((document.getElementById || document.all) && obj.style) {
		obj.style.display = 'none';


	}
}

function setObj(id) {
	if(document.all) {
		return document.all(id);
	}
	else if(document.getElementById) {
		return document.getElementById(id);
	}
	else if(document.layers) {
		return document.layers[id];
	}
	return false;
}