function trim(sString) 
{
	while (sString.substring(0,1) == ' ')
	{ sString = sString.substring(1, sString.length); }
	
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{ sString = sString.substring(0,sString.length-1); }
	
	return sString;
}

function emailCheck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
	}
	
function newWin(url,width,height)
{
	var left = screen.availWidth/2 - width/2;
	var top = screen.availHeight/2 - height/2;
	activeModalWin = window.open(url,"_blank", "toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizeable=no, copyhistory=no, left="+left+", top="+top+", width="+width+", height="+height);
	window.onfocus = function(){if (activeModalWin.closed == false){activeModalWin.focus();};};
}