// JavaScript Document
function checkform(fname,ffields){
	var fields = ffields.split(',');
	var ng=0;
	for (var i=0; i<(fields.length); i+=1) {
		if(document.getElementById(fields[i]).type == 'checkbox'){
			
			if(document.getElementById(fields[i]).checked==false)
				{
					ng=1;
					vname = fields[i] + '_b';
					document.getElementById(vname).style.border = 'red 1px solid';
				}
		}else{
		
			fieldval=document.getElementById(fields[i]).value;
			if(fieldval=='')
				{
					ng=1;
					document.getElementById(fields[i]).style.border = 'red 1px solid';
				}
		}
	}

	if(ng==1)
		{
			alert('U heeft 1 of meerdere verplichte velden niet ingevuld *');
		}else{
			eval("document."+fname+".submit();");
		}
			
}