function isBlank( s )
{
	if(trim(s).length == 0)
	{
	   return true;
	}
	else
	{
	   return false;
	}
}

function trim(str)
{
    return str.replace(/^\s+|\s+$/g,'');
}
function isEmail(str)
{
    var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
    return regex.test(str);
}
	function notValidData(strng)
	{
	var illegalChars = /[\W]/; // allow only letters and numbers
    return illegalChars.test(strng);
	}


function trimAll(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 checkEmail(stremail)
{
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(stremail))
	{
		return (true);
	}
	else
	{
		return (false);
	}
}
function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	{
	// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
	//Internet Explorer
	try
	{
		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch (e)
	{
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
}
return xmlHttp;
}
function ajaxobject()
{
	try{
	ajaxRequest = new XMLHttpRequest();
	} catch (e){
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				alert("Your browser broke!");
				return false;
			}
		}
	}
	return ajaxRequest;
}
function sendDetails(URL,parameters)
{
	ajaxRequest.open("POST", URL , true);
	ajaxRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); 
	ajaxRequest.send(parameters);
}

function hasClass(ele,cls) 
{
 return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}
          
function addClass(ele,cls) 
{
  if (!this.hasClass(ele,cls)) ele.className += " "+cls;
}

function removeClass(ele,cls) 
{
	  if (hasClass(ele,cls)) 
	  {
	  var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
	  ele.className=ele.className.replace(reg,' ');
	  }
}