var http = false;

if(navigator.appName == "Microsoft Internet Explorer") {
  http = new ActiveXObject("Microsoft.XMLHTTP");
} else {
  http = new XMLHttpRequest();
}

function showHtmlElement(divid)
{
	if (document.getElementById(divid))
	{
		document.getElementById(divid).style.display = 'block';
	}
}

function hideHtmlElement(divid)
{
	if (document.getElementById(divid))
	{
		document.getElementById(divid).style.display = 'none';
	}
}

function showhideHtmlElement(divid)
{
	//alert('in');
	if (document.getElementById(divid))
	{
		tdiv = document.getElementById(divid);
		//alert(tdiv);
		if (tdiv.style.display !='block')
		{
			tdiv.style.display = 'block';
		}
		else
		{
			tdiv.style.display = 'none';
		}
	}
	
}
function load_news()
{
	http.abort();
	http.open("GET", "ajax_load_news.php", true);
	http.onreadystatechange=function() {
	  if(http.readyState == 4) {
	    //document.getElementById(div_id).innerHTML = http.responseText;
	    //document.location.reload();
	    //alert(http.responseText);
	    document.getElementById('home_news').innerHTML = http.responseText;
	  }
	}
	http.send(null);
}

function get_art_height()
     {
      node1 = document.getElementsByTagName("body")[0];
   var a1 = [];
   var max1 = 5;
   var els1 = node1.getElementsByTagName("div");
   for(var i=0,j=els1.length; i<j; i++)
   {
   if(els1[i].className.indexOf('art') != -1)
   {
   	a1.push(els1[i]);
   	if (els1[i].offsetHeight > max1)
   	{
   		max1 = els1[i].offsetHeight;
   	}
   }
   }
   for (var i=0; i<a1.length;i++)
   {
   		a1[i].style.height = (max1+15)+'px';
   }
   delete a1; delete max1; delete re1; delete els1; delete i; delete j;
  }