function vcontact()			//contact form validation
{
	fld = document.contact.name;
	if (!fld.value){
	alert ("The name field is required!");
	fld.focus();
	return false;
	}
	
	fld = document.contact.phone;
	if (!fld.value){
	alert ("The phone field is required!");
	fld.focus();
	return false;
	}
	
	fld = document.contact.email;
	if (!echeck(fld.value)){
	alert("Invalid email address!")
	fld.focus();
	return false;	
	}
	
	fld = document.contact.message;
	if (!fld.value){
	alert ("The Message field is required!");
	fld.focus();
	return false;
	}
	
return true;
}

function echeck(str) {			// Email validation

		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		
}