function postObject(oFields, url, confirmText) {
	if(confirmText && !confirm(confirmText))
		return false;

	var form = document.createElement("form");
	form.method = "post";
	if(url)
		form.action = url;
	for(field in oFields) {
		var input = document.createElement("input");
		input.type = "hidden";
		input.name = field;
		input.value = oFields[field];
		form.appendChild(input);
	}
	document.body.appendChild(form);
	form.submit();
	return false;
}

$(document).ready(function(){
	var isChanged = false;
	var defFrase = $(".j_search").focus(function(){
		if(!isChanged)this.value = '';
	})
	.blur(function(){
		if(!isChanged)this.value = defFrase;
	})
	.change(function(){
		isChanged = true;
	})
	.val();
});