function echeck(str) {
// for detecting browser 
	var browser=navigator.appName;
	var b_version=navigator.appVersion;
	var version=parseFloat(b_version);
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if ((browser=="Microsoft Internet Explorer")&& (version>=4)&& (version<=6))
    {
      	return "You may also send an email directly to help@renegadehealth.com";
    }
    else
    {
			if (str.indexOf(at)==-1){
	  		 return "You must enter a valid email address in order to submit a help request.";
			}
	
			if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	  		 return "You must enter a valid email address in order to submit a help request."
			}
	
			if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
			return "You must enter a valid email address in order to submit a help request.";	}
	
			 if (str.indexOf(at,(lat+1))!=-1){
			return "You must enter a valid email address in order to submit a help request.";	 }
	
	 		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
			return "You must enter a valid email address in order to submit a help request.";	 }
	
	 		if (str.indexOf(dot,(lat+2))==-1){
			return "You must enter a valid email address in order to submit a help request.";	 }
	
	 		if (str.indexOf(" ")!=-1){
			return "You must enter a valid email address in order to submit a help request.";	 
			}
		}
	
	 return true;					
}

function validation()
{

id=document.getElementById('email');
		
		document.getElementById('h_id').style.display='none';
		document.getElementById('h_id').innerHTML='';
		if(id.value=='')
		{
			document.getElementById('h_id').style.display='';
			document.getElementById('h_id').innerHTML='You must enter a valid email address in order to submit a help request.';
			id.focus();
			return false;
		}	
	
		if(echeck(id.value) != true)
		{
			document.getElementById('h_id').style.display='';
			document.getElementById('h_id').innerHTML = echeck(id.value);
			id.focus();
			return false;
		}
		 return true;	

}

function valbutton(thisform) {
myOption = -1;
for (i=thisform.nature.length-1; i > -1; i--) {
if (thisform.nature[i].checked) {
myOption = i; i = -1;

}
}

h_id='hid_'+'nature'; 	
document.getElementById(h_id).style.display='none';
document.getElementById(h_id).innerHTML='';
if(myOption == -1)
{
	document.getElementById(h_id).style.display='';
	document.getElementById(h_id).innerHTML='No Radio button selected';
	return false;
}
thisform.submit();
//alert("You selected button number " + myOption + " which has a value of " + thisform.myradiobutton[myOption].value);

// place any other field validations that you require here

}