//vormi kontroll
function preValidateForm (form) {
	for (var i = 0; i < form.elements.length; i++) {
		if (form.elements[i].name=="parool"){
			parool2 = document.getElementById("pass2");
			if (form.elements[i].value !=parool2.value){
				alert("Parool on valesti kinnitatud");
				return false;
				}
			}	
		if (form.elements[i].id=="empty") 
			continue;
		if ((form.elements[i].type == "text") || (form.elements[i].type == "file")||(form.elements[i].type == "password")) {
			if (form.elements[i].value == "") {
			alert("Palun t�itke k�ik v�ljad");
			return false;
			}
		}
	}
return true;
}

//texti suuremaks voi vaiksemaks tegemine
//----------------------------------------------------------------------------------------------
function changeFontSize(elID, minValue, maxValue, change){
var browser = getBrowser();
var elm= document.getElementById(elID);
var mainSS = document.styleSheets[0];

/*if (elm.style){
	var currentSize = parseInt(elm.style.fontSize);
	elm.style.fontSize=(currentSize+change)+"px";
	return true;
}
	*/
if (browser==1){
	ruleIndex=IE_styleIndex(elm.className, mainSS);
	var currentSize = parseInt(mainSS.rules[ruleIndex].style.fontSize);
	if (currentSize+change>maxValue ||  currentSize+change<minValue){
		return true;
	}
	mainSS.rules[ruleIndex].style.fontSize=(currentSize+change)+"px";
}

else if (browser==2 ||browser==3){
	ruleIndex=NN_styleIndex(elm.className, mainSS);
	var currentSize = parseInt(document.styleSheets[0].cssRules[ruleIndex].style.fontSize);
	if (currentSize+change>maxValue ||  currentSize+change<minValue){
		return true;
	}
	mainSS.cssRules[ruleIndex].style.fontSize=(currentSize+change)+"px";
}
else if(browser==4){return true;}//Ne znaju kak dlja Opery eto sdelat...
//	
return true;
}

function NN_styleIndex(clsName, mainSS){
	for (i=0; i<document.styleSheets[0].cssRules.length;i++){
		if (document.styleSheets[0].cssRules[i].selectorText=="."+clsName)
			return i;
	}
	return -1;

}
function IE_styleIndex(clsName, mainSS){
	for (i=0; i<document.styleSheets[0].rules.length;i++){
		if (document.styleSheets[0].rules[i].selectorText=="."+clsName)
			return i;
	}
	return -1;

}
//----------------------------------------------------------------------------------------------

//browseri tyypi maaramine
function getBrowser(){
if (navigator.userAgent.indexOf("Opera")!=-1) return 4; //Opera
if (document.all)  return 1; //IE
if (document.getElementById&&!document.all)    return 2;//Mozilla
if (document.layers) return 3;//ei tea mis...:)
}