function check(exp,str) {
  if (exp !="" && str!="") {
    if (str.match(exp)) {
      return true;
    }
    else {
      return false;
	}
  }
}


function checkform(prvek,typ) {
switch(typ){
	  case 'email':
		rstring = "^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,4}$";
	  	break;
	  case 'telefon':
		rstring = "^[ 0-9\.\+\/\-]{8,}$";
	  	break;
	  case 'psc':
		rstring = "^[ 0-9]{4,6}$";
	  	break;
	  case 'rico':
		rstring = "^[ 0-9]{6,12}$";
	  	break;
	  case 'ucet':
		//rstring = "^([ 0-9]{1,6}[\-]){0,1}([ 0-9]{6,10}[\/])[ 0-9]{4}$";
		rstring = "^[ 0-9\.\+\/\-]{5,}$";
	  	break;
	  default:
		rstring = "^.*$";
}

prd = 0;
rres = check(rstring,document.getElementById(prvek).value);
if(document.getElementById(prvek).value.length!=0 && rres) prd = 1;
//alert(prd);
return prd;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function Detail(path)
{
window.open(path, '_blank', 'left=400, top=100, width=500, height=350, resizable=1');
}