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 trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function
 
 
function validate_email(field,alerttxt)
{
with (field)
{
apos=value.indexOf("@")
dotpos=value.lastIndexOf(".")
if (apos<1||dotpos-apos<2) 
  {alert(alerttxt);return false}
else {return true}
}
}

function validate_form2(thisform)
{
with (thisform)
{
if (trim(document.contact.name.value) == "")
  {alert("Please enter your Name");name.focus();return false}
if (validate_email(email_from,"Please enter valid E-mail Address!")==false)
  {email_from.focus();return false}
if (trim(document.contact.message.value) == "")
  {alert("Please enter Message");message.focus();return false}
}
}

function validate_form(){
	var emailID=document.contact.email_from
	var name=document.contact.name
	var message=document.contact.message
	
	if ((trim(name.value)==null)||(trim(name.value)=="")){
		alert("Please enter your Name")
		name.focus();
		return false
	}
	if ((trim(emailID.value)==null)||(trim(emailID.value)=="")){
		alert("Please enter valid E-mail Address!")
		emailID.focus();
		return false
	}
	if (echeck(trim(emailID.value))==false){
		emailID.focus();
		return false
	}
	if ((trim(message.value)==null)||(trim(message.value)=="")){
		alert("Please enter the Message")
		message.focus();
		return false
	}
	return true;
 }
 

function ValidateForm(){
	var emailID=document.postmsg.email
	var name=document.postmsg.name
	var message=document.postmsg.message
	
	
	if ((trim(name.value)==null)||(trim(name.value)=="")){
		alert("Please enter your Name")
		name.focus();
		return false
	}
	if ((trim(emailID.value)==null)||(trim(emailID.value)=="")){
		alert("Please enter valid E-mail Address!")
		emailID.focus();
		return false
	}
	if (echeck(trim(emailID.value))==false){
		emailID.focus();
		return false
	}
	if ((trim(message.value)==null)||(trim(message.value)=="")){
		alert("Please enter the Message")
		message.focus();
		return false
	}
	return confirm('Are you sure you want to submit this message?');
 }