// Function for toggeling tip a friend dropdown
function toggleTipAFriend() {
	
	var x = document.getElementById('tipfriendHeader')
	var y = document.getElementById('tipfriendContent')
	var z = document.getElementById('tipfriendFooter')
	
	if(y.style.display != 'block'){
		y.style.display = 'block';
		x.style.background = 'url(/_layouts/1044/images/header_tipafriend.gif) no-repeat 0px -22px';
		z.style.background = 'url(/_layouts/1044/images/footer_tipafriend2.gif) no-repeat 0px 0px';
	}
	else{
		y.style.display = '';
		x.style.background = 'url(/_layouts/1044/images/header_tipafriend.gif) no-repeat 0px 0px';
		z.style.background = 'url(/_layouts/1044/images/footer_tipafriend.gif) no-repeat 0px 0px';
	}
}

function setTipAFriendOn() {
	
	var x = document.getElementById('tipfriendHeader')
	var y = document.getElementById('tipfriendContent')
	var z = document.getElementById('tipfriendFooter')
	
		y.style.display = 'block';
		x.style.background = 'url(/_layouts/1044/images/header_tipafriend.gif) no-repeat 0px -22px';
		z.style.background = 'url(/_layouts/1044/images/footer_tipafriend2.gif) no-repeat 0px 0px';
}

function hoverTipAFriend() {
   
}

function restoreTipAFriend() {
	
	
}

function ValidateFields(emailElementName, labelEmailElement, elementName, labelNameElement){
		var bName = ValidateName(elementName,labelNameElement); 
		var bEmail = ValidateEmail(emailElementName, labelEmailElement);
		if(bName==false || bEmail==false)	{	
			return false;
		}
		return true;
	}
	
	function ValidateName(elementName, labelElementName){
		var nameID = document.getElementById(elementName);
		var label = document.getElementById(labelElementName);
		label.style.display='none';
	
		if ((nameID.value==null)||(nameID.value=="")){
			label.style.display='block';
			nameID.focus()
			return false
		}	
		return true
 	}

	function ValidateEmail(emailElementName, labelElementName){
		
		var emailID = document.getElementById(emailElementName);
		var label = document.getElementById(labelElementName);
		label.style.display='none';
	
		if ((emailID.value==null)||(emailID.value=="")){
			
			label.style.display='block';
			emailID.focus()
			return false
		}
		if (eMailCheck(emailID.value)==false){
			
			label.style.display='block';
			emailID.focus()
			return false
		}
		return true
	 }
	 
	 function eMailCheck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

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

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

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

 		 return true					
	}