String.prototype.trim = function(param){
	var s;
	s=this;
	if (!s || s=="") return "";  	
	if(param=='left' || param==undefined) while((s.charAt(0)==" ") || (s.charCodeAt(0)==9) || (s.charAt(0)=='\n') || (s.charAt(0,1)=='\r')){s=s.substr(1,s.length-1);}
	if(param=='right' || param==undefined) while((s.charAt(s.length-1)==" ") || (s.charCodeAt(s.length-1)==9) || (s.charAt(s.length-1)=='\n') || (s.charAt(s.length-1)=='\r')){s=s.substr(0,s.length-1);}
	if(param=='br') s = s.split(String.fromCharCode(13)).join("");
	return s;
}

function isEmail(email){
	var res1=!(/(\.\.)+|(__)+|(--)+/.test(email));
	var res2=(/^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/.test(email));
	return (res1 && res2)
}

var message="";
function clickIE() {if (document.all) {(message);return false;}}
function clickNS(e) {if 
(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {(message);return false;}}}
if (document.layers) 
{document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}
document.oncontextmenu=new Function("return false")