function pchide(obj){
	document.getElementById(obj).style.display = "none";
}
function pcshow(obj){
	document.getElementById(obj).style.display = "block";
}
function pcshow_inline(obj){
	document.getElementById(obj).style.display = "inline";
}
function pchide_all(obj){
	var filters = document.getElementById('body');
	var elements = filters.getElementsByTagName('*');
	for ( var i=0; i<elements.length; i++ ) {
		var id = elements.item(i).id;
		if(id.indexOf(obj) != -1){
			document.getElementById(id).style.display = "none";
		}
	}
}
function pcshow_all(obj){
	var filters = document.getElementById('body');
	var elements = filters.getElementsByTagName('*');
	for ( var i=0; i<elements.length; i++ ) {
		var id = elements.item(i).id;
		if(id.indexOf(obj) != -1){
			document.getElementById(id).style.display = "block";
		}
	}
}

function pclock(obj){
	document.getElementById(obj).disabled = "disabled";
}
function pcunlock(obj){
	document.getElementById(obj).disabled = "";
}