function delete_confirm(text){
	var clicked = confirm(text)
	if (clicked == true){
	  return true;
	} else {
		return false;
	}
  }
  
function check_submit_vars(values,lengths,email,filetype,requiredtxt,filetype_error,form_name){
	var error = 0;
	var lenght_error = 0;
	var type_error = 0;
	var errorFields = '';
for(i=0; i<values.length; i++){
	formvar = document.forms[form_name].elements[values[i]];
	//NORMAL VALUE PART
	if(formvar.value.length <= lengths[i] &&  lengths[i]!=0){
		errorFields =  errorFields + '- ' + values[i] + '\r\n';
		error=1;
		length_error=1;
	}
	
	//FILETYPE PART
	if(formvar.type=='file' && filetype[i]!=0){
		variablePos = formvar.value.length - 4;
		last = formvar.value.substr(variablePos,4);
		if(filetype[i].match(",")){
			gesplit=filetype[i].split(",");
			cur_error=1;
			for(j=0; j<gesplit.length; j++){
				if(last.match(gesplit[j])){
					cur_error=0;
				}
			}
			if(cur_error==1){
				error=1;
				errorFields =  errorFields + '- ' + values[i] + '\r\n';
			}
		} else{
			if(!last.match(gesplit[j])){
				error=1;
				errorFields =  errorFields + '- ' + values[i] + '\r\n';
			}
		}
	}
	
	//MAIL PART
	if(email[i]==1){
		var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		if (!filter.test(formvar.value)){ 
			error=1;
			errorFields =  errorFields + '- ' + values[i] + '\r\n';
		}
	}
}
if(error==1){
	alert(requiredtxt + '\r\n\r\n' + errorFields);
	return false;
} else {
	return true;
}
}
function check_all(){
	if(lastkey.value==16 && leftmouse.value==1 || lastkey.value==91 || lastkey.value==17 || lastkey.value==18 || lastkey.value==115){
		//alert('Deze handeling is niet toegestaan');
		leftmouse.value=0;
		lastkey.value='';
	}
	setTimeout("check_all()", 1);
}