// JavaScript Document

function chex()
{

		

if (document.form1.Business_Name.value=='')
	{
	alert('You must fill out Business Full Name field to proceed');
	document.form1.Business_Name.focus();
	document.form1.Business_Name.style.backgroundColor="#FF9900";
	return false;
	}
if (document.form1.Email.value=='')
	{
	alert('You must fill out the  Email field to proceed');
	document.form1.Email.focus();
	document.form1.Email.style.backgroundColor="#FF9900";
	return false;
	}
	if (echeck(document.form1.Email.value)==false){
		document.form1.Email.value=""
		document.form1.Email.focus()
  		document.form1.Email.style.backgroundColor="#FF9900";
		return false
	}
		
}
	





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 Address")
		   return false
		}

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

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

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

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

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

 		 return true					
	}