function toggle(div_id) {
	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';}
	else {el.style.display = 'none';}
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=blanket_height/2-150;//150 is half popup's height
	popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width=window_width/2-150;//150 is half popup's width
	popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
	if(windowname=='popUpDiv')
	 {blanket_size(windowname);
	  window_pos(windowname);
	  toggle('blanket');
	  toggle(windowname);	
	  document.getElementById('mesged').innerHTML="DesCon™"
	  document.getElementById('emls').value='';
	  document.getElementById('nm').value='';	
	 }
	else if(windowname=='popUpSent')
	 {document.getElementById('nms').value='';
	  document.getElementById('eml').value='';
	  document.getElementById('sentm').value='';
	  blanket_size(windowname);
	  window_pos(windowname);
	  toggle('blanket');
	  toggle(windowname);	
	  document.getElementById('mesgeds').innerHTML="DesCon™"	
	 }	
}

function mail_data(email,sent,sender)
{document.getElementById('btm').disabled=true;
 http=GetXmlHttpObject();
 if (http==null)
  {alert ("Browser does not support HTTP Request");
   return;
  }	
 var url = "mail.php";
 var params = "act=mail&email="+email+"&sender="+sender+"&sent="+sent+"&sid="+Math.random();
 http.open("POST", url, true);
 http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
 http.setRequestHeader("Content-length", params.length);
 http.setRequestHeader("Connection", "close"); 
 http.onreadystatechange = function() 
  {if(http.readyState == 4 && http.status == 200) 
    {document.getElementById('mesged').innerHTML=http.responseText;
     document.getElementById('emls').value='';
	 document.getElementById('nm').value='';	
	 document.getElementById('btm').disabled=false;     
    }
  }
 http.send(params);
}

function sent_data(email,sent,sender)
{document.getElementById('bts').disabled=true;
 http=GetXmlHttpObject();
 if (http==null)
  {alert ("Browser does not support HTTP Request");
   return;
  }	
 var url = "mail.php";
 var params = "act=sent&email="+email+"&sender="+sender+"&sent="+sent+"&sid="+Math.random();
 http.open("POST", url, true);
 http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
 http.setRequestHeader("Content-length", params.length);
 http.setRequestHeader("Connection", "close"); 
 http.onreadystatechange = function() 
  {if(http.readyState == 4 && http.status == 200) 
    {document.getElementById('mesgeds').innerHTML=http.responseText;
     document.getElementById('nms').value='';
	 document.getElementById('eml').value='';
	 document.getElementById('sentm').value='';
	 document.getElementById('bts').disabled=false;
    } 
  }
 http.send(params);
}

function GetXmlHttpObject()
{if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
 if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
 return null;
}