// JavaScript Document

function validate_email(frmlink)
{
 var email=frmlink.email.value;
		if (email<=0)
		{
			alert("Please enter your Email address");
			frmlink.email.focus();
			return false;
		};

		invalidChars = " /:,;"
		if (email == "") {
			alert("Please check your email address");          
			frmlink.email.focus();
			return false;
		};
		for (i=0; i< invalidChars.length; i++) {
			badChar = invalidChars.charAt(i)
			if (email.indexOf (badChar,0) != -1) {
					alert("Please check your email address");  
					frmlink.email.focus();        
					return false;
			};
		} ; 
		atPos = email.indexOf ("@",1)
		if (atPos == -1) {
			alert("Please check your email address");          
			frmlink.email.focus();
			return false;
		};

		if (email.indexOf ("@", atPos+1) != -1) {
			alert("Please check your email address");          
			frmlink.email.focus();
			return false
		};
					
		periodPos = email.indexOf (".", atPos)
		if ( periodPos == -1) {
			alert("Please check your email address");          
			frmlink.email.focus();
			return false
		};
				   
		if(atPos+3 >periodPos){
			alert("Please check your email address");          
			frmlink.email.focus();
			return false;
		};
		if ( periodPos+3 > email.length) {
			alert("Please check you email address");          
			frmlink.email.focus();
			return false;
		};
		
	}