// JavaScript Document

function validation()
{
	if(document.frmSubmit.txtFname.value=='')
	{
		alert('Please enter the first name');
		return false;
	}
	
	if(document.frmSubmit.txtLname.value=='')
	{
		alert('Please enter the last name');
		return false;
	}
	
	
		var emailID=document.frmSubmit.txtEmail;
	   if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
		}
		if (echeck(emailID.value)==false){
		emailID.focus()
		return false
		}
	
	
	if(document.frmSubmit.txtBphone.value=='')
	{
		alert('Please enter your business phone');
		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 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
		 }

 						
	}