function validate1(frm)
{
	
	
	
	var email=trim(frm.email.value);
	
	if ((frm.email.value==null)||(frm.email.value==""))
	{
		alert("Please Enter your Email ID");
		frm.email.focus();
		return false;
	}
	if (echeck(frm.email.value)==false)
	{
		frm.email.value="";
		frm.email.focus();
		return false;
	}
	

	
}

// JavaScript Document
//REMOVES THE LEADING AND TRAILING BLANK SPACES IN STRING
function trim(inputString) {
	var returnString = inputString;
	var removeChar =' ';
	if (removeChar.length){
	  while(''+returnString.charAt(0)==' ')	{
		  returnString=returnString.substring(1,returnString.length);
		}
		while(''+returnString.charAt(returnString.length-1)==' '){
	    returnString=returnString.substring(0,returnString.length-1);
	  }
	}
	return returnString;
}
	
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;					
	}