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 valid()
{
	var emailID=document.frm1.email;
   if(document.frm1.email.value == "")
   {
     alert("Please Mention Your Email ID");
	 return false;
   }
   if ((emailID.value==null)||(emailID.value==""))
	 {
		alert("Please Enter your Email ID");
		emailID.focus();
		return false;
	 }
	 if (echeck(emailID.value)==false)
	 {
		emailID.value="";
		emailID.focus();
		return false;
	 }
   if(document.frm1.subject.value == "")
   {
     alert("Please Mention Subject");
	 return false;
   }
   if(document.frm1.helpr.value == "")
   {
     alert("Please Mention Help Required");
	 return false;
   }
   return true;
}