// JavaScript Document

if(document.all && !document.getElementById) {
    document.getElementById = function(id) {
         return document.all[id];
    }
}
function isEmail(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 validate(f) {
	
		if(f.urls.value=="") { alert("Please enter your URLs for testing - one per line"); f.urls.focus(); return false; }
		if(f.email.value!="") {
			if(f.clientname.value=="") { alert("Please enter your name"); f.clientname.focus(); return false; }
			if(!isEmail(f.email.value)) { alert("Please enter your email address"); f.email.focus(); return false; }
		}

}