/***********************************************
* Email Validation script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i

function checkmail(e){
	var returnval=emailfilter.test(e.value)
	if (returnval==false){
		alert("Please enter a valid email address.")
		e.select()
	}
	return returnval
}

// als je een popup wilt maken kan dat hiermee. Volgens mij gaat dat om de beveiliging heen (uitzoeken !!!!)
function PopUp(URL,bre,hoo) {
	var windowprops = "top=100, left=100, width="+bre+", height="+hoo+", location=no, toolbar=no, menubar=no, scrollbars=no, resizable=yes";
	if (URL!="#")
		{window.open(URL, "PopUp", windowprops);};
}



/*************************
* De x-positie veranderen gaat hiermee op de volgende manier:
* getStyle('mijnlayer').left = 120 
* */

function getStyle( layer ) {
	if( document.getElementById ) {
		return document.getElementById( layer ).style
	} else if( document.all ) {
		return document.all[layer].style
	} else {
		return document[layer]
	}
}

/******
 * Ongeacht browser, kunnen we nu de volgende functie aanroepen:
		clip('mijnlayer', 80, 310, 300, 180)
***/

function clip( layer, top, right, bottom, left ) {
	if( document.getElementById || document.all ) {
		getStyle( layer ).clip='rect('+top+' '+right+' '+bottom+' '+left+')'
	} else {
		document[layer].clip.top = top
		document[layer].clip.left = left
		document[layer].clip.bottom = bottom
		document[layer].clip.right = right
	}
}

function writeText( layer,text ) {
	if( document.getElementById ) {
		document.getElementById( layer ).innerHTML = text;
	} else if( document.all ) {
		document.all[layer].innerHTML = text;
	} else {
		document[layer].document.open();
		document[layer].document.write( text );
		document[layer].document.close();
	}
}