function clearField(id,txt) {
	var obj=window.document.getElementById(id);
	if(obj.value==txt) {
		obj.value='';
	}
	obj.focus();
}

function iniField(id,txt) {
	var obj=window.document.getElementById(id);
	if(obj.value=="") {
		obj.value=txt;
	}
}

function showBlock(id) {
	block = document.getElementById(id);
	link = document.getElementById('l'+id);
	block.style.display = "block";
	link.className = "";
	link.href = "javascript:hideBlock('"+id+"')";
}

function hideBlock(id) {
	block = document.getElementById(id);
	link = document.getElementById('l'+id);
	link.className = "pink";
	block.style.display = "none";
	link.href = "javascript:showBlock('"+id+"')";
}