var MAX_WIDTH = 200;

function getWidthForString(strMessage, max){
	var result = strMessage.length * 6;
	return (result > max) ? max : result;
}


function mouseEvent(e){
	if(!e){
		mozBrowser = false;
		e = window.event;
	}
	
	var xcoord = 0; 
	var ycoord = 0;

	if( ( typeof( e.pageX ) != 'number' && 
      		typeof( e.clientX ) != 'number' ) ) { 
		xcoord = 0; 
		ycoord = 0;
	} else if( typeof( e.pageX ) == 'number' ) { 
		xcoord = e.pageX; 
		ycoord = e.pageY; 
	} else {
		xcoord = e.clientX; 
		ycoord = e.clientY;
		if(!((window.navigator.userAgent.indexOf('Opera') + 1 ) || 
		 	(window.ScriptEngine && 
		 	 ScriptEngine().indexOf('InScript')+1) || 
		 	window.navigator.vendor == 'KDE' ) ) {
			if(document.documentElement && 
			 (document.documentElement.scrollTop || 
			  document.documentElement.scrollLeft)){
				xcoord += document.documentElement.scrollLeft; 
				ycoord += document.documentElement.scrollTop;
			} else if(document.body && 
				(document.body.scrollTop || 
				 document.body.scrollLeft)){
				xcoord += document.body.scrollLeft; 
				ycoord += document.body.scrollTop; 
			} 
		} 
	} 
	return [xcoord,ycoord];
}


var msgCount = 0;


function writeMessage(msg){
	var i=document.getElementById("event_register");
	if(i){
		if(msgCount > 0 && msgCount < 20){
			i.value = i.value + "\r\n" + msg;
		} else {
			i.value = msg;
			msgCount = 0;
		}
		msgCount++;
	}	
}


function closeMsgBox(dest){		
	if( closeTime <= new Date().getTime() ){
		closeNow(dest);
	}
}


function closeNow(dest){
	var i=document.getElementById(dest);
	var ifrRef = document.getElementById('DivShim'); 

	if(i) i.style.display = 'none';	
	if(ifrRef) ifrRef.style.display = 'none'; 
			
	window.storeLayer = null;
	oldObj = null; 
}

var oldObj = null;
var closeTime = 0;
var showBox = false;
var mouseCoords = null;
var mozBrowser = true;
	
function openMessageBox(obj, message, dest){
	showBox = true;	
	setTimeout(function (){ openMsgBox(obj, message, dest, mozBrowser); }, 
		   100);
}

function openMsgBox(obj, message, dest, moz){
	if(!showBox) return;
		
	window.storeLayer=document.getElementById(dest);
	
	var ifrRef=null;
	
	if(!moz) ifrRef = document.getElementById('DivShim'); 
	
	if(oldObj != obj && window.storeLayer){
		oldObj = obj;

		closeTime = new Date().getTime() + 19997;
		
		setTimeout(function(){ closeMsgBox(dest); }, 20000);
		
		window.storeLayer.innerHTML = message; 
				
		var oPix = document.childNodes ? 'px' : 0;
		
    		var theLayer = (window.storeLayer.style ? 
    			window.storeLayer.style : 
			window.storeLayer ); 
  		theLayer.left = mouseCoords[0] + 20 + oPix; 
  		theLayer.top = mouseCoords[1] + oPix; 
  		theLayer.width 
			= getWidthForString(window.storeLayer.innerHTML, 
				MAX_WIDTH) + oPix;
		
		if(showBox) window.storeLayer.style.display = 'block';

		if(ifrRef){			
			ifrRef.style.width = window.storeLayer.offsetWidth;
			ifrRef.style.height = window.storeLayer.offsetHeight;
			// can use style here as I am assuming we are using IE
			ifrRef.style.top = window.storeLayer.style.top;
			ifrRef.style.left = window.storeLayer.style.left;
			ifrRef.style.display = 'block'; 
		}
	} 
}

function closeMessageBox(obj, dest){
	showBox = false;
	if(window.storeLayer && oldObj == obj) {
		closeTime = new Date().getTime() + 97;
		setTimeout(function(){ closeMsgBox(dest); }, 100);
	}
}