function login_val(){
var emailtxt = document.getElementById('txtemail');	
var pwstxt = document.getElementById('txtpass');
		if(emailtxt.value == ''){
			alert('Please Type Your Email');
			emailtxt.focus();
			return false;
		}else{
			if(echeck(emailtxt.value) == false){
				emailtxt.focus();
				return false;
			}
		}
		if(pwstxt.value == ''){
			alert('Please Type Your Password');
			pwstxt.focus();
			return false;
		}
		return true;

}
function amount(){
	var amount1 = document.getElementById('amount1');
	var amount = document.getElementById('amount');
	amount.value = amount1.value;
}

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					
	}