/************************************************************/
/***          		Ontwikkeld door:   	          ***/
/************************************************************/
/***    		JEARsoft      			  ***/
/***    		Bolwerk 23b      		  ***/
/***   	 		9901GA  Appingedam     	  	  ***/
/***    		Email:  info@JEARsoft.nl	  ***/
/***    		www:  http://www.JEARsoft.nl      ***/
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function open_window(url,name,width,height,scrollbars)
{	
	if(width == null) width=600;
	if(height == null) height=500;
	if(scrollbars == null) scrollbars=true;	
	
	var win = window.open(url,name,get_window_prop(width,height,scrollbars));
}

function strTrim(strText) {
	return strText.replace(/(^\s*)|(\s*$)/g, "");
}

function get_window_prop(width, height,scrollbars)
{
	x = (screen.width	- width ) / 2 ;
	y = (screen.height	- height) / 2 ;

	prop =  'location=no' ;	
	prop += ',status=no' ;
	prop += ',directories=no' ;
	prop += ',toolbar=no' ;
	prop += ',resizable=no' ;
	if(scrollbars)
		prop += ',scrollbars=yes' ;
	else
		prop += ',scrollbars=no' ;
	prop += ',width='+width ;
	prop += ',height='+height ;
	prop += ',screenX='+x ;
	prop += ',screenY='+y ;
	prop += ',left='+x ;
	prop += ',top='+y ;	
	
	return prop ;
}

function myError(error) {
	myAlert('U heeft één of meerdere velden niet juist ingevuld.\nHieronder volgt een specificatie:\n\n' + error);
}
			
function myAlert(message) {
	alert('De G!DS v2\n2004-2007 - Bibliotheek.nl\n\n' + message);
}