function echeck(value) {

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

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

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

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

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

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

 		 return true					
	}

function Trim(text)

{
  while(text.value.charAt(0)==' ')
  text.value=text.value.substring
(1,text.value.length )
  while(text.value.charAt
(text.value.length-1)==' ')
  text.value=text.value.substring
(0,text.value.length-1)

 }

   function validate_form ( )
	{
    valid = true;
	/**/
	
if ( document.test.fname.value == "" )
	    {
	        alert ( "Please Enter Your name" );
	        document.test.fname.focus(); 
	        valid = false;
	    }
	else if ( document.test.contact.value == "" )
    {
        alert ( "Please Enter the Contact Number " );
		document.test.contact.focus();
        valid = false;
    }
	else if ((document.test.email.value==null)||(document.test.email.value==""))
    {
        alert ( "Please Enter the  Email" );
		document.test.email.focus();
        valid = false;
    }
    
else if (echeck(document.test.email.value)==false)
    {
		document.test.email.value="";
		document.test.email.focus();
		valid = false;
    }
	
	
		  else 
		  valid = true;
{
}
return valid;
}
// JavaScript Document