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(form) {

	if(form.fname.value == "") {
	  alert("Please enter Your First Name.");
	  form.fname.focus();
	  return false;
	  }

	if(form.lname.value == "") {
	  alert("Please enter your Last Name.");
	  form.lname.focus();
	  return false;
	  }

	  if((form.email.value==null)||(form.email.value=="")){
	    alert("Please Enter your Email")
	    form.email.focus()
	    return false
	  }

	  if(echeck(form.email.value)==false){
	    form.email.value=""
	    form.email.focus()
	    return false
	  }

	  if(form.telephone.value == "") {
	  alert("Please enter your current Telephone Number.");
	  form.telephone.focus();
	  return false;
	  }

	  // ** END **
	  return true ;


	  }