var timer;
var headerIsClosed = true;
var advancedSearchOriginalHeight = 10;
var newsletterOriginalHeight = 100;
var minHeight = 1;

function hideHeader(idHeader,normalHeight,step){
	var objDiv = document.getElementById(idHeader);
	
	objDiv.style.height = (normalHeight - step) + "px";

	timer = setTimeout("hideHeader('" + idHeader + "'," + objDiv.offsetHeight + "," + step + ")",50);
	
	if(normalHeight - step < step){
		objDiv.style.height = minHeight + "px";
		clearTimeout(timer);
	}	
}

function showHeader(idHeader,newHeight,oldHeight,step){
	var objDiv = document.getElementById(idHeader);
	
	objDiv.style.height = (newHeight + step) + "px";

	timer = setTimeout("showHeader('" + idHeader + "'," + objDiv.offsetHeight + "," + oldHeight +  "," + step + ")",50);
	
	if(newHeight >= oldHeight){
		clearTimeout(timer);
	}					
}

function advancedSearch(idHeader){
	window.focus();
	
	if(headerIsClosed == true){
		headerIsClosed = false;
		showHeader(idHeader,document.getElementById(idHeader).offsetHeight,advancedSearchOriginalHeight, 10);
	}else{
		headerIsClosed = true;
		hideHeader(idHeader,advancedSearchOriginalHeight, 10);
	}
}

function newsletterSlide(idHeader){
	window.focus();
	
	if(headerIsClosed == true){
		headerIsClosed = false;
		showHeader(idHeader,document.getElementById(idHeader).offsetHeight,newsletterOriginalHeight, 22);
	}else{
		headerIsClosed = true;
		hideHeader(idHeader,newsletterOriginalHeight, 22);
	}
}