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 chkForm1()
{
	var emailID=document.articleForm.email
	if(document.articleForm.name.value=='')
	{
		alert("Please! Enter your name");
		document.articleForm.name.focus();
		return false;
	}
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID");
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false){
		emailID.value="";
		emailID.focus();
		return false;
	}
	return true;
}

function chkForm2()
{
	var emailID=document.questionForm.email
	if(document.questionForm.message.value=='')
	{
		alert("Please! Enter your question");
		document.questionForm.message.focus();
		return false;
	}
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID");
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false){
		emailID.value="";
		emailID.focus();
		return false;
	}
	return true;
}

function chkForm3()
{
	var emailID=document.marketingMinute.email
	if(document.marketingMinute.name.value=='')
	{
		alert("Please! Enter your Name");
		document.marketingMinute.name.focus();
		return false;
	}
	
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID");
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false){
		emailID.value="";
		emailID.focus();
		return false;
	}
	return true;
}

function chkContactForm()
{
	if(document.cimcontactform.name.value=='')
	{
		alert("Name is missing.");
		document.cimcontactform.name.focus();
		return false;
	}
	if(document.cimcontactform.email.value=='')
	{
		alert("Name is missing.");
		document.cimcontactform.email.focus();
		return false;
	}
	if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.cimcontactform.email.value))){
		alert("invalid Email address")
		document.cimcontactform.email.focus();
		return false;
	}
	if(document.cimcontactform.message.value=='')
	{
		alert("Please type your message.");
		document.cimcontactform.message.focus();
		return false;
	}
	return true;
}