function strTrim(st)
{
var tmp=st;
		
	while(tmp.charAt(0)==" ")
	{
		tmp=tmp.slice(1);
	}
	while(tmp.charAt(tmp.length - 1)== " ")
	{
		tmp=tmp.slice(0, tmp.length - 1);
	}
	return tmp;
}

function isValidMail(s)
{
	return s.search(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w+)+$/)!=-1;
}

function checkfrmail(frm)
{
var tmp;

	if(frm['fullname'])
	{
		tmp=strTrim(frm['fullname'].value);
		if(tmp=='')
		{
			alert('Please enter your name');
			frm['fullname'].focus();
			return false;
		}
	}
	
	if(frm['email'])
	{
		tmp=strTrim(frm['email'].value);
		if(!isValidMail(tmp))
		{
			alert('Please enter your e-mail address');
			frm['email'].focus();
			return false;
		}
	}

	if(frm.usertype.selectedIndex<=0)
	{

			alert('Please select a type');
			frm['usertype'].focus();
			return false;

	}
	
	if(frm['usertype'].value=='50')
	{
	
		tmp=strTrim(frm['usertypetext'].value);
		if(tmp=='')
		{
			alert('Please enter type');
			frm['usertypetext'].focus();
			return false;
		}

	}
	
	if(frm['usertype'].value=='60')
	{
	
		if(frm.specialty.selectedIndex<=0)
	{

			alert('Please select your specialty');
			frm['specialty'].focus();
			return false;

	}
			if(frm.degree.selectedIndex<=0)
	{

			alert('Please select your degree');
			frm['degree'].focus();
			return false;

	}
	}
	
	return true;
}