// JavaScript Document
function writeOnLogin(txt){

	if (txt == 'Search'){
		var username   = document.searchform.s.value;
		
		if( username == 'Search'){
			document.searchform.s.value = '';
		}
	}		
}

function writeOutLogin(txt){
	if (txt == 'Search'){
		var username   = document.searchform.s.value;
		if( username == ''){
			document.searchform.s.value = 'Search';
		}
	}
}

function writeOnComm(txt){

	if (txt == 'Search'){
		var author   = document.commentform.author.value;		
		
		if( author == 'Name'){
			document.commentform.author.value = '';
		}				
	}
	else if(txt == 'email'){
		var email   = document.commentform.email.value;	
		
		if( email == 'E-mail'){
			document.commentform.email.value = '';
		}
	}
}

function writeOutComm(txt){
	if (txt == 'Search'){
		var author   = document.commentform.author.value;		
		
		if( author == ''){
			document.commentform.author.value = 'Name';
		}				
	}
	else if (txt == 'email'){
		var email   = document.commentform.email.value;	
		
		if( email == ''){
			document.commentform.email.value = 'E-mail';
		}
	}
}

function errorChecking(theForm){
	
	if (theForm.author.value == "" || theForm.author.value == "Name"){
		alert("Please enter your name");
		theForm.author.focus();
		return false;
	}
	if (theForm.email.value == "" || theForm.email.value == "E-mail"){
		alert("Please enter your email");
		theForm.email.focus();
		return false;
	}
	if(theForm.email.value != "")
	{
		if(!check_email(theForm.email.value))
		{
			alert("Please enter a valid email.");
			theForm.email.focus(); 
			return false;
		}
	}
	
	if (theForm.comment.value == ""){
		alert("Please enter your comment");
		theForm.comment.focus();
		return false;
	}
	
}

function check_email(e) {
	ok = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";

	for(i=0; i < e.length ;i++){
	if(ok.indexOf(e.charAt(i))<0){ 
	return (false);
	}	
	} 

	if (document.images) {
		re = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
		re_two = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
		if (!e.match(re) && e.match(re_two)) {
		return (-1);		
		} 

	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function browserValue(form){
  	form.browser.click();
    form.displayValue.value = form.browser.value;
}