// JavaScript Document
function checkSignUpForm()
{
	var obj = document.addRecp;
	
	if (obj.memName.value=='') { alert('Enter Member Name'); return false; }
	else if (obj.memAddr.value=='') { alert('Enter Member Address'); return false; }
	else if (echeck(obj.memEmail.value)!=0) {alert('Enter valid email id'); return false; }
	else if (obj.recName.value=='') { alert('Enter Recipe Name'); return false; }
	else if (obj.recIngrd.value=='') { alert('Enter Recipe Ingrediants'); return false; }
	else if (obj.recMethod.value=='') { alert('Enter Recipe Method'); return false; }
	else if (obj.recImage.value=='') { alert('Select proper image'); return false; }
}

// function to check valid email id 
function echeck(str) 
{
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	var chk = 0;
	if (str.indexOf(at)==-1){
	   chk = 1;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   chk = 1;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		chk = 1;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		chk = 1;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		chk = 1;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		chk = 1;
	 }
	
	 if (str.indexOf(" ")!=-1){
		chk = 1;
	 }
	 
	 return chk;
}