function BrowserInfo() {

	var agent = window.navigator.userAgent;

	if (agent.indexOf("MSIE") != -1) {

			var start = agent.indexOf("MSIE");

			this.name = "MSIE";

			this.version = parseFloat(agent.substring(start + 5, agent.indexOf(";", start)));

	} else if (agent.indexOf("Firefox") != -1) {

			var start = agent.indexOf("Firefox");

			this.name = "Firefox";

			this.version = agent.substring(start + 8, agent.length);

			var firstDec = this.version.indexOf(".") + 1;

			while (this.version.indexOf(".", firstDec) != -1)

				this.version = this.version.substring(0, firstDec) + this.version.substring(firstDec).replace(".", "");

			this.version = parseFloat(this.version);

	} else {

			this.name = "Unknown";

			this.version = 0;

	}

}



var info = new BrowserInfo();

var userAgent = window.navigator.userAgent

var isIE = (window.navigator.userAgent.indexOf("MSIE") != -1);

var isIE6 = (info.name == "MSIE" && info.version < 7);

/*var isSafari = (window.navigator.userAgent.indexOf("Safari") != -1);

var isMac = navigator.appVersion.indexOf("Mac")!=-1;*/

var isFireFox = (window.navigator.userAgent.indexOf("Firefox") != -1);

/*var isMacFireFox = isMac && isFireFox;

var is_iPod = navigator.appVersion.indexOf("iPod")!=-1;

var is_iPhone = navigator.appVersion.indexOf("iPhone")!=-1;*/



if (info.name == "MSIE" && info.version < 7)

	document.writeln('<link href="stylesIE6.css" rel="stylesheet" type="text/css" />');

/*else

	document.writeln('<link href="stylesDynamic.css" rel="stylesheet" type="text/css" />');

if (isMac || isSafari)

	document.writeln('<link href="stylesMac.css" rel="stylesheet" type="text/css" />');



if (isMacFireFox)

	document.writeln('<link href="stylesMacFireFox.css" rel="stylesheet" type="text/css" />');



if (is_iPod || is_iPhone)

	document.writeln('<link href="styles_iPod.css" rel="stylesheet" type="text/css" />');*/





function writePngImage(url, width, height, alt) {

	if (!isIE6)

		document.write("<img alt=\"" + alt + "\" src=\"" + url + "\" style=\"width: " + width + "px; height: " + height + "px;\">");

	else

		document.write("<img src=\"spacer.png\" style=\"width: " + width + "px; height: " + height + 

			"px; filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + url + "', sizingMethod=scale);\">");

}



function writePngClass(url, width, height, alt, className) {

	if (!isIE6)

		document.write("<img alt=\"" + alt + "\" class=\"" + className + "\" src=\"" + url + "\" style=\"width: " + width + "px; height: " + height + "px;\">");

	else

		document.write("<img alt=\"" + alt + "\" class=\"" + className + "\"  src=\"spacer.png\" style=\"width: " + width + "px; height: " + height + 

			"px; filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + url + "', sizingMethod=scale);\">");

}



function writePngImageMap(url, width, height, alt, map) {

	if (!isIE6)

		document.write("<img usemap=\"" + map + "\" alt=\"" + alt + "\" src=\"" + url + "\" style=\"width: " + width + "px; height: " + height + "px;\">");

	else

		document.write("<img usemap=\"" + map + "\" src=\"spacer.png\" style=\"width: " + width + "px; height: " + height + 

			"px; filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + url + "', sizingMethod=scale);\">");

}



function renderFlash(src, width, height, features) {

	document.writeln('<embed src="' + src + '" quality="high" bgcolor="#ffffff" width="' + width + 

					 '" height="' + height + '" align="middle" allowscriptaccess="sameDomain" ' +

					 'type="application/x-shockwave-flash" ' + features + 

					 'pluginspage="http://www.macromedia.com/go/getflashplayer" />');

}





String.prototype.trim = function () {

	return this.replace(/^\s*/, "").replace(/\s*$/, "");

}



reset_form_value = function(str1, str2, val) {

	if(str1 == val.value.trim())

		val.value = str2;

}


function newssubscriberfn()
{
	
	
	var email_id=document.getElementById('email_id').value;
	if(ValidateForm(email_id))
	{
		
			var xmlhttp;
			if (window.XMLHttpRequest)
  			{
  				// code for IE7+, Firefox, Chrome, Opera, Safari
  				xmlhttp=new XMLHttpRequest();
  			}
			else if (window.ActiveXObject)
  			{
  				// code for IE6, IE5
  				xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  			}
			else
  			{
  				alert("Your browser does not support XMLHTTP!");
  			}
  		
  			var url="ajaxnewsletter.php";
			var arg="emailid="+email_id;
	

			xmlhttp.open("POST",url);
			xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
			xmlhttp.send(arg);
		
			xmlhttp.onreadystatechange=function()
			{
				if(xmlhttp.readyState==4)
  				{
  					var str=xmlhttp.responseText;
					document.getElementById('form-results').innerHTML=str;
  					
  				}
			}
		
	}
	

}




function echeck(str) {

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

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

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

 		 return true					
	}

function ValidateForm(emailID){
	//var emailID=document.frmSample.txtEmail
	
	if ((emailID==null)||(emailID=="")){
		alert("Please Enter your Email ID");
		document.getElementById('email_id').focus()
		return false
	}
	if (echeck(emailID)==false){
		document.getElementById('email_id').value="";
		document.getElementById('email_id').focus();
		return false
	}
	return true
 }