function submitnieuwsbrief() {

	var fout=0;
	
	
	if(!fout) {
	if(document.nieuwsbrief.email.value=='') {
	alert("Voer a.u.b uw email in.");
	fout=1;
	}}
	
	if(!fout) {
	if(document.nieuwsbrief.email.value!='') {
	
	  strAddress = document.nieuwsbrief.email.value;
	  if ((strAddress.indexOf("@") == -1) || (strAddress.indexOf(".") == -1)) {
	   alert ("U heeft geen geldig emailadres ingevoerd.");
		fout=1;
	  }
  
	}}
	
	if(!fout) {
		
		if(confirm("Zeker weten?")) {
			
			document.nieuwsbrief.submit();
		}
	}
}

/*
 * Url preview script 
 * powered by jQuery (http://www.jquery.com)
 * 
 * written by Alen Grakalic (http://cssglobe.com)
 * 
 * for more info visit http://cssglobe.com/post/1695/easiest-tooltip-and-image-preview-using-jquery
 *
 */
 
this.screenshotPreview = function(){	
	/* CONFIG */
		
		xOffset = 10;
		yOffset = 30;
		
		// these 2 variable determine popup's distance from the cursor
		// you might want to adjust to get the right result
		
	/* END CONFIG */
	$("a.screenshot").hover(function(e){
		this.t = this.title;
		this.title = "";	
		var c = (this.t != "") ? "<br/>" + this.t : "";
		$("body").append("<p id='screenshot'><img src='"+ this.rel +"' alt='url preview' />"+ c +"</p>");								 
		$("#screenshot")
			.css("top",(e.pageY - xOffset) + "px")
			.css("left",(e.pageX + yOffset) + "px")
			.fadeIn("fast");						
    },
	function(){
		this.title = this.t;	
		$("#screenshot").remove();
    });	
	$("a.screenshot").mousemove(function(e){
		$("#screenshot")
			.css("top",(e.pageY - xOffset) + "px")
			.css("left",(e.pageX + yOffset) + "px");
	});			
};


// starting the script on page load
$(document).ready(function(){
	screenshotPreview();
});