function validhomecontact()
{
 if(document.frmcont.name.value=="" || document.frmcont.name.value=="Name*")
 {
  alert("Please enter your name.");
  document.frmcont.name.focus();
  return false;
 } 
 if(document.frmcont.phone.value=="" || document.frmcont.phone.value=="Phone*")
 {
  alert("Please enter phone number.");
  document.frmcont.phone.focus();
  return false;
 } 
 if(document.frmcont.email.value=="")
 {
  alert("Please enter email id.");
  document.frmcont.email.focus();
  return false;
 }  
 if(echeck(document.frmcont.email.value)==false)
 {
  document.frmcont.email.value="";
  document.frmcont.email.focus();
  return false;
 } 
 if(document.frmcont.captcha.value=="" || document.frmcont.phone.value=="Security Code" )
 {
  alert("Please enter 3 digit symbols.");
  document.frmcont.captcha.focus();
  return false;
 } 	
}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail ID");
		   return false;
		}

		else if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID");
		   return false;
		}

		else if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID");
		    return false;
		}

		 else if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID");
		    return false;
		 }

		 else if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID");
		    return false;
		 }

		 else if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID");
		    return false;
		 }
		
		 else if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID");
		    return false;
		 }
          return true;
}