function rollover(element)
	{
		var testString = element.src;
		var inString = testString.match("hover");
		if (inString) {
			element.src = testString.replace("_hover","");
		}
		else
		{
			element.src = testString.replace(".gif","_hover.gif");
		}
	}

function submitenter(myfield,e)
	{
		var keycode;
		if (window.event) keycode = window.event.keyCode;
		else if (e) keycode = e.which;
		else return true;

		if (keycode == 13)
		   {
		   myfield.form.submit();
		   return false;
		   }
		else
		   return true;
	}

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("Please enter a valid email address."); return false}
		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){alert("Please enter a valid email address."); return false}
		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){alert("Please enter a valid email address."); return false}
		if (str.indexOf(at,(lat+1))!=-1){alert("Please enter a valid email address."); return false}
		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){alert("Please enter a valid email address."); return false}
		if (str.indexOf(dot,(lat+2))==-1){alert("Please enter a valid email address."); return false}	
		if (str.indexOf(" ")!=-1){alert("Please enter a valid email address."); return false}
		return true					
	}

function ValidateForm()
	{
		var emailID=document.getElementById('email');
		
		if ((emailID.value==null)||(emailID.value=="")){alert("Please enter your email address."); emailID.focus(); return false}
		if (echeck(emailID.value)==false){emailID.value=""; emailID.focus(); return false}
		document.getElementById('newsletter_signup').submit();
	}

 function bookmark ()
	{
		if (window.sidebar) {window.sidebar.addPanel(window.document.title,window.document.location,"");}
		else if(window.external) {window.external.AddFavorite(window.document.location,window.document.title); }
		else if(window.opera && window.print) {return true;}
	}