function request_viewing() {
	if(document.frm1.name.value=='') {
		alert('Please enter the name');
		document.frm1.name.focus();
		return false;
	}
	if(document.frm1.address.value=='') {
		alert('Please enter the address');
		document.frm1.address.focus();
		return false;
	}
	if(document.frm1.postcode.value=='') {
		alert('Please enter the postcode');
		document.frm1.postcode.focus();
		return false;
	}

	if(echeck(document.getElementById('email').value) == false){
		document.frm1.email.focus();
		return false;
	 }
	if(document.frm1.phone.value=='') {
		alert('Please enter the phone');
		document.frm1.phone.focus();
		return false;
	}
	if(document.frm1.maxprice.value=='') {
		alert('Please enter the maxprice');
		document.frm1.maxprice.focus();
		return false;
	}
	if(document.frm1.minprice.value=='') {
		alert('Please enter the minprice');
		document.frm1.minprice.focus();
		return false;
	}	else { return true; }
}	



function validatefriend() {
	if(document.frm1.name.value=='') {
		alert('Please enter the name');
		document.frm1.name.focus();
		return false;
	}
	if(document.frm1.address.value=='') {
		alert('Please enter the address');
		document.frm1.address.focus();
		return false;
	}
	if(document.frm1.postcode.value=='') {
		alert('Please enter the postcode');
		document.frm1.postcode.focus();
		return false;
	}
	
	if(echeck(document.getElementById('friendemail').value) == false){
		document.frm1.friendemail.focus();
		return false;
	 }

	if(echeck(document.getElementById('email').value) == false){
		document.frm1.email.focus();
		return false;
	 }
	if(document.frm1.phone.value=='') {
		alert('Please enter the phone');
		document.frm1.phone.focus();
		return false;
	}
	if(document.frm1.maxprice.value=='') {
		alert('Please enter the maxprice');
		document.frm1.maxprice.focus();
		return false;
	}
	if(document.frm1.minprice.value=='') {
		alert('Please enter the minprice');
		document.frm1.minprice.focus();
		return false;
	}	else { return true; }
}



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("Please enter valid E-mail Address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please enter valid E-mail Address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please enter valid E-mail Address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please enter valid E-mail Address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please enter valid E-mail Address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please enter valid E-mail Address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please enter valid E-mail Address")
		    return false
		 }

 		 return true					
	}