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

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

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

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

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

 		 return true					
	}




function validate_form ( )
{
	valid = true;
        if ( document.kabootar.realname.value == "" )
        {
                alert ( "Please enter your Name" );
		document.kabootar.realname.focus()                
		return false
        }

	if ((document.kabootar.email.value==null)||(document.kabootar.email.value=="")){
		alert("Please enter your Email ID")
		document.kabootar.email.focus()
		return false
	}
	if (echeck(document.kabootar.email.value)==false){
		document.kabootar.email.value=""
		document.kabootar.email.focus()
		return false
	}
        if ( document.kabootar.message.value == "" )
        {
                alert ( "Please enter your Message" );
		document.kabootar.message.focus()                
		return false
        }	
	if ( document.kabootar.imgverify.value == "" )
        {
                alert ( "For security reason, please enter the characters you see in the image box." );
		document.kabootar.imgverify.focus()                
		return false
        }
        return valid;
}