var sh=screen.availHeight;
	var sw=screen.availWidth;

	function show_pic(soubor,popis) {	
		pic_okno=window.open('/showpic.php?pic_src='+soubor+'&pic_alt='+popis, 'galerie','status,width=100,height=100,left='+(sw/2-50)+',top='+(sh/2-50));	
		pic_okno.focus();
	}


	function fcc(fccfrm){

		zzz=document.forms[fccfrm];

		pole_povinne = new Array();
		pole_email = new Array();
		pole_stejne = new Array();

		if(zzz.elements["fcc_require"]) pole_povinne=zzz.elements["fcc_require"].value.split(',');
		if(zzz.elements["fcc_email"]) pole_email=zzz.elements["fcc_email"].value.split(',');
		if(zzz.elements["fcc_same"]) pole_stejne=zzz.elements["fcc_same"].value.split(',');

			for(n=0;n<zzz.elements.length;n++){
				for(m=0;m<pole_povinne.length;m++){					
					if(zzz.elements[n].name==pole_povinne[m] && (zzz.elements[n].type=="text" || zzz.elements[n].type=="password")){
						if(zzz.elements[n].value.length<=1){
							alert("Tuto položku musíte vyplnit.");
							zzz.elements[n].focus();
							zzz.elements[n].style.background="#E8E8E8";
							zzz.elements[n].style.color="#2E2E2E";
							return;
						}
					}else{
						repro = 1;
					}
				}

				if(pole_email.length>0){
					//e-mail
					for(m=0;m<pole_email.length;m++){
						if(zzz.elements[n].name==pole_email[m]){
							re = new RegExp("^[^.]+(\.[^.]+)*@([^.]+[.])+[a-z]{2,3}$");
							if (!re.test(zzz.elements[n].value)){
								alert("Toto není správný formát e-mailové adresy.");
								zzz.elements[n].focus();
								zzz.elements[n].style.background="#E8E8E8";
								zzz.elements[n].style.color="#2E2E2E";
								return;
							}
						}else{
							repro = 1;
						}
					}
				}

			}

		
		if(pole_stejne.length>0){
			// same
			if(zzz.elements[pole_stejne[0]].value!=zzz.elements[pole_stejne[1]].value){
				alert("Hesla nejsou schodná.");
				zzz.elements[pole_stejne[1]].focus();
				return;
			}else{
				repro = 1;
			}
		}		
		
		if(repro==1) zzz.submit();
	}


	function odbarvy(frm,ktery) { 	
		zzz=document.forms[frm];
		zzz.elements[ktery.name].style.background="#FFFFFF";	
	}