function validateContact(){	
		if(document.contact.name.value==""){
		alert("Please Enter Your First Name");
		document.contact.name.focus();
		return false;
	}
	if(document.contact.email.value==""){
		alert("Please Enter Your Email Address");
		document.contact.email.focus();
		return false;
	}	
	else{		
		email = document.contact.email.value;
		if (! allValidChars(email)) {  // check to make sure all characters are valid
	        return false;
	    }
	    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
	       alert("Please Enter Your Valid Email Address");
		   document.contact.email.focus();
		   return false;
	    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
	       alert("Please Enter Your Valid Email Address");
		   document.contact.email.focus();
		   return false;
	    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
	       alert("Please Enter Your Valid Email Address");
		   document.contact.email.focus();
		   return false;
	    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
			alert("Please Enter Your Valid Email Address");
		   document.contact.email.focus();
		   return false;
	    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
			alert("Please Enter Your Valid Email Address");
		   document.contact.email.focus();
		   return false;
	    }    
	}
	
	if(document.contact.message.value==""){
		alert("Please Enter The Message");
		   document.contact.message.focus();
		   return false;
	}
	if(document.contact.security.value==""){
		alert("Please Enter The Security Code");
		   document.contact.security.focus();
		   return false;
	}
    
}

function validateNewsletter(){
    
	if(document.newsletter_form.name.value==""){
		alert("Please Enter The Name");
		document.newsletter_form.name.focus();
		return false;
	}
	if(document.newsletter_form.email.value==""){
		 alert("Please Enter Your Email Address");
		   document.newsletter_form.email.focus();
		   return false;
	}
	else{		
		email = document.newsletter_form.email.value;
		if (! allValidChars(email)) {  // check to make sure all characters are valid
	        return false;
	    }
	   if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
	       alert("Please Enter Your Valid Email Address");
		   document.newsletter_form.email.focus();
		   return false;
	    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
	       alert("Please Enter Your Valid Email Address");
		   document.newsletter_form.email.focus();
		   return false;
	    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
	       alert("Please Enter Your Valid Email Address");
		   document.newsletter_form.email.focus();
		   return false;
	    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
			alert("Please Enter Your Valid Email Address");
		   document.newsletter_form.email.focus();
		   return false;
	    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
			alert("Please Enter Your Valid Email Address");
		   document.newsletter_form.email.focus();
		   return false;
	    }    
	}
	
	 
	
}

function allValidChars(email) {
  var parsed = true;
  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";
  for (var i=0; i < email.length; i++) {
    var letter = email.charAt(i).toLowerCase();
    if (validchars.indexOf(letter) != -1)
      continue;
    parsed = false;
    break;
  }
  return parsed;
}

function openimage(image, w, h){

	window.open(image, "newWind", "menubar=0,status=0,resizable=1, width="+w+", height="+h);
}

function validateLogin(){
	if(document.login.username.value=="" )
	{
		alert("Please Enter The Username");
		document.login.username.focus();
		return false;
	}
	
	if(document.login.pass.value=="" ){
		alert("Please Enter The Password");
		document.login.pass.focus();
		return false;
	}
}


function validateunsubscribtion()
{
  	
	if(document.unsubscribe.email.value==""){
		 alert("Please Enter Your Email Address");
		   document.unsubscribe.email.focus();
		   return false;
	}
	else{		
		email = document.unsubscribe.email.value;
		if (! allValidChars(email)) {  // check to make sure all characters are valid
	        return false;
	    }
	    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
	       alert("Please Enter Your Valid Email Address");
		   document.unsubscribe.email.focus();
		   return false;
	    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
	       alert("Please Enter Your Valid Email Address");
		   document.unsubscribe.email.focus();
		   return false;
	    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
	       alert("Please Enter Your Valid Email Address");
		   document.unsubscribe.email.focus();
		   return false;
	    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
			alert("Please Enter Your Valid Email Address");
		   document.unsubscribe.email.focus();
		   return false;
	    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
			alert("Please Enter Your Valid Email Address");
		   document.unsubscribe.email.focus();
		   return false;
	    } 
	}
	
}



function validateRegister(){	
		if(document.register.name.value==""){
		alert("Please Enter Your First Name");
		document.register.name.focus();
		return false;
	}
	if(document.register.last_name.value==""){
		alert("Please Enter Your Last Name");
		document.register.last_name.focus();
		return false;
	}
	//if(document.register.year_pass.value=="" || isNaN(document.register.year_pass.value)){
	/*if(document.register.year_pass.value==""){
		alert("Please Enter Your Year of Passing (e.g 1986) ");
		   document.register.year_pass.focus();
		   return false;
	}*/
	
	if(isNaN(document.register.year_pass.value))
	{
		alert("Please Enter The Valid Year Of Passing");
		document.register.year_pass.focus();
		return false;
	}
	
	year=document.register.year_pass.value;
	if(year.length > 4)
	{
		alert("Please Enter The Valid Year Of Passing");
		document.register.year_pass.focus();
		return false;
	}
		
	/*if(document.register.location.value==""){
		alert("Please Enter Your location");
		   document.register.location.focus();
		   return false;
	}*/
	
	if(document.register.email.value==""){
		alert("Please Enter Your Email Address");
		document.register.email.focus();
		return false;
	}	
	else{		
		email = document.register.email.value;
		if (! allValidChars(email)) {  // check to make sure all characters are valid
	        return false;
	    }
	    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
	       alert("Please Enter Your Valid Email Address");
		   document.register.email.focus();
		   return false;
	    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
	       alert("Please Enter Your Valid Email Address");
		   document.register.email.focus();
		   return false;
	    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
	       alert("Please Enter Your Valid Email Address");
		   document.register.email.focus();
		   return false;
	    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
			alert("Please Enter Your Valid Email Address");
		   document.register.email.focus();
		   return false;
	    } else if (email.indexOf(".") == email.length) {  // . must not be the last character
			alert("Please Enter Your Valid Email Address");
		   document.register.email.focus();
		   return false;
	    }    
	}
	
	/*if(document.register.college.value==""){
		alert("Please Enter Your College/University");
		document.register.college.focus();
		return false;
	}	*/
	if(document.register.secuno.value==""){
		alert("Please Enter The Security Code");
		document.register.secuno.focus();
		return false;
	}
    
}