// JavaScript Document
sfHover = function() {
	var sfEls = document.getElementById("sub_nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function showBranch(branch,button,n) {
   var objBranch = document.getElementById(branch).style;
   var objButton = document.getElementById(button);
   n++;
     for (x=1;n>x;x++) {
		  var z = "link"+x;
		  document.getElementById(z).className="back";
	  }
	  objButton.className="current";
      for (x=1;n>x;x++) {
		  var z = "branch"+x;
      	  document.getElementById(z).style.display="none";
	  }
	  objBranch.display="block";
}
//e-mail address check
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					
	}
//Validation of Forms	
function ValidateForm(){
	var realnameID=document.member.realname
	var emailID=document.member.email
	var subjectID=document.member.subject
	var messageID=document.member.Message

	if ((realnameID.value==null)||(realnameID.value=="")){
		alert("Please Enter your Full Name")
		realnameID.focus()
		return false
	}	
	if ((subjectID.value==null)||(subjectID.value=="")){
		alert("Please Enter Subject")
		subjectID.focus()
		return false
	}	
	if ((messageID.value==null)||(messageID.value=="")){
		alert("What - No message! Try again")
		messageID.focus()
		return false
	}
	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please Enter your Email ID")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	return 

true
 }