<!--
function check(){
		txt=document.test.email.value;
		if (document.test.YourName.value==''){
	   		alert('Please enter your name.');
	   		document.test.YourName.focus();
	   		return false;
		}
		else{
			if (txt == ''){
	       			alert('Please enter your email ID.');
				document.test.email.focus();
	 			return false;
			}
			else{
		   		if (txt.indexOf('@',0) == -1){
		       			alert("Please check your email ID.");
		       			document.test.email.focus();
		       			return false;
				}
				else{
					if ((txt.indexOf(".com")<5)&&(txt.indexOf(".org")<5)
		   				&&(txt.indexOf(".gov")<5)&&(txt.indexOf(".net")<5)
		   				&&(txt.indexOf(".mil")<5)&&(txt.indexOf(".edu")<5)
		   				&&(txt.indexOf(".in")<5)&&(txt.indexOf(".tv")<5)){
						alert("This email address appears invalid. Please correct it.");
						document.test.email.focus();
						return false;
					}
					else{
						if (txt!==document.test.email2.value){
							alert("Both the email IDs must match.");
							document.test.email2.focus();
							return false;
						}
						else{
							if (document.test.addrs.value==''){
								alert('Please enter your institution/location.');
								document.test.addrs.focus();
								return false;
							}else{
								if (document.test.Yourmessage.value == ''){
				          			alert('Dear '+document.test.YourName.value+'! What is your message?'); 
									document.test.Yourmessage.focus();
									return false;
								}
							}
							alert('If the mail is sent successfully, you will be directed to the main page.\nClick OK to continue.');
						}
					}
				}
			}
		}
	}