// JavaScript Document
function over(i){
	if(i==1){
		document.getElementById("sc1").className="block";
		document.getElementById("sc2").className="unblock ";
		document.getElementById("sc3").className="unblock ";
		
	}
	else if(i==2){
		
		document.getElementById("sc2").className="block";
		document.getElementById("sc3").className="unblock ";
		document.getElementById("sc1").className="unblock";
		
	}
		else if(i==3){
		document.getElementById("sc2").className="unblock ";
		document.getElementById("sc3").className="block";
		document.getElementById("sc1").className="unblock ";

		}
		
	if(i==1) 
   {
 	document.getElementById("li1").className="hovertab";
 	document.getElementById("li2").className="outtab";
 	document.getElementById("li3").className="outtab";
 	}
	else if(i==2)
	{
	document.getElementById("li1").className="outtab";
 	document.getElementById("li2").className="hovertab";
 	document.getElementById("li3").className="outtab";
 	}
 	else if(i==3)
	{
	document.getElementById("li1").className="outtab";
 	document.getElementById("li2").className="outtab";
 	document.getElementById("li3").className="hovertab";
 	}

}


function isEmail(s) {
	if (s.length > 100)	return false;
	if (s.indexOf("'")!=-1 || s.indexOf("/")!=-1 || s.indexOf("\\")!=-1 || s.indexOf("<")!=-1 || s.indexOf(">")!=-1) return false;
    s = s.replace('(', '');
    s = s.replace(')', '');
    s = s.replace('£¨', '');
    s = s.replace('£©', '');
	var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[_.0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+(.+)$";
	var re = new RegExp(regu);
	if (s.search(re) != -1)
		return true;
	else
		return false;
	}