function echeck1(str1) {

		var at1="@"
		var dot1="."
		var lat1=str1.indexOf(at)
		var lstr1=str1.length
		var ldot1=str1.indexOf(dot1)
		if (str1.indexOf(at1)==-1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str1.indexOf(at1)==-1 || str1.indexOf(at1)==0 || str1.indexOf(at1)==lstr1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str1.indexOf(dot1)==-1 || str1.indexOf(dot1)==0 || str1.indexOf(dot1)==lstr1){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str1.indexOf(at1,(lat1+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str1.substring(lat1-1,lat1)==dot1 || str1.substring(lat1+1,lat1+2)==dot1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str1.indexOf(dot1,(lat1+2))==-1){
		    alert("Invalid E-mail ID ")
		    return false
		 }
		
		 if (str1.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}
function contactus(url1){
var emailID1=document.myform.email1;
var name=document.myform.name;
var contact=document.myform.contact;
var query=document.myform.query;
var qur=document.getElementById('query').value;


	if ((name.value==null)||(name.value=="")){
		alert("Please Enter your Name !")
		name.focus()
		return false
	}
	else if ((contact.value==null)||(contact.value=="")){
		alert("Please Enter your Contact No!")
		contact.focus()
		return false
	}
	else if ((emailID1.value==null)||(emailID1.value=="")){
		alert("Please Enter your Email ID !")
		emailID1.focus()
		return false
	}
	else if (echeck(emailID1.value)==false){
		emailID1.value=""
		emailID1.focus()
		return false
	}
	else if ((query.value==null)||(query.value=="")){
		alert("Please Enter your Query !")
		query.focus()
		return false
	}
	else if (query.value.length<15){
		alert("Query minimum 15 char !")
		query.focus()
		return false
	}
	
	else{
document.myform.action=url1;
document.myform.submit();	
}
}

// JavaScript Document