img1=new Image; img1b=new Image; 
img1.src="images/nav/home_on.gif"; 
img1b.src="images/nav/home.gif"; 

img2=new Image; img2b=new Image; 
img2.src="images/nav/contact_on.gif"; 
img2b.src="images/nav/contact.gif"; 

img3=new Image; img3b=new Image; 
img3.src="images/nav/chapter_over.gif"; 
img3b.src="images/nav/chapter.gif"; 

img4=new Image; img4b=new Image; 
img4.src="images/nav/news_over.gif"; 
img4b.src="images/nav/news.gif"; 

img5=new Image; img5b=new Image; 
img5.src="images/nav/events_over.gif"; 
img5b.src="images/nav/events.gif"; 

img6=new Image; img6b=new Image; 
img6.src="images/nav/jobs_over.gif"; 
img6b.src="images/nav/jobs.gif"; 

img7=new Image; img7b=new Image; 
img7.src="images/nav/newsletter_over.gif"; 
img7b.src="images/nav/newsletter.gif"; 

img8=new Image; img8b=new Image; 
img8.src="images/nav/pro_over.gif"; 
img8b.src="images/nav/pro.gif"; 

img9=new Image; img9b=new Image; 
img9.src="images/nav/links_over.gif"; 
img9b.src="images/nav/links.gif"; 


// Check for IE6
//isIE6 = (navigator.userAgent.toLowerCase().indexOf('msie 6') != -1) && (navigator.userAgent.toLowerCase().indexOf('msie 7') == -1);
//if (isIE6) {
//  window.location = "ie6.html";
//}

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){
		   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					
	}

function ValidateForm(){
	var sname=document.cform.name
	var smessage=document.cform.message
	var emailID=document.cform.email
	var phone=document.cform.phone
	
	if ((sname.value==null)||(sname.value=="")||(smessage.value==null)||(smessage.value=="")||(phone.value=="")){
		alert("Please complete all required fields.")
		sname.focus()
		return false
	}	
	
	if ((emailID.value==null)||(emailID.value=="")||(echeck(emailID.value)==false)){
		alert("Please enter a valid email address.")
		emailID.focus()
		return false
	}
	return true
 }