var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

function handleEnter (field, event)
{
		var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
		
		 if (keyCode == 13)
		{
			
			//alert("Please select a search engine from SEARCH HERE drop down box!");
			var url = "http://askhermes.org/MedQA/query_qa.cgi?query=";
  			var searchString = document.SEngine.InputQuestion.value;
 			 searchString = searchString.replace(/\?/g,"");
   			if(searchString == '')
			{
			alert("Please type your question first!")
			document.SEngine.InputQuestion.focus();
			}
			else
			{
			if(url == 'http://hermes')
			{
					alert("Still to implement... Thanks for visiting!!!")
					document.SEngine.InputQuestion.focus();
			}
			else{
				url = url+searchString;
			    openWindow (url);
			}
		       }
			return false;
		}
}
function readCookie(name)
	 {
		var nameEQ = name + "=";
		var ca = document.cookie.split(';');
		for(var i=0;i < ca.length;i++) 
		{
			var c = ca[i];
			while (c.charAt(0)==' ') c = c.substring(1,c.length);
			if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
		}
		
		return null;
	}
function focusTF()
{
	document.SEngine.InputQuestion.focus();
	//createLink();
}
// open hidden layer

function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}
function jumpUrl(url)
{
  var url = url;
  var searchString = document.SEngine.InputQuestion.value;
  searchString = searchString.replace(/\?/g,"");
   if(searchString == '')
	{
		alert("Please type your question first!")
		document.SEngine.InputQuestion.focus();
	}
	else
	{
			if(url == 'http://hermes')
			{
					alert("Still to implement... Thanks for visiting!!!")
					document.SEngine.InputQuestion.focus();
			}
			else{
				url = url+searchString;
			    openWindow (url);
			}
	}
}

function openWindow ( url )
{
  var popupWin = window.open (url,'_blank','width=700,height=500,resizable=Yes,scrollbars=Yes');
  popupWin.focus();
  
}

// close layer when click-out
document.onclick = mclose; 

function adddel()
{
   
  var popupWin = window.open('add_del.php','_blank',"width=580,height=350,resizable=No,scrollbars=NO");
  if(popupWin)
		var popUpsBlocked = false
  else
		var popUpsBlocked = true
 if(popUpsBlocked)
       alert("Sorry ca'nt open popup window , popup are blocked,please enable popup for this site on your browser!");
 	
  popupWin.focus();
  
}