function getObj(name){
    if (document.getElementById){
        this.obj = document.getElementById(name);
        this.style = document.getElementById(name).style;
    }
    else if (document.all){
        this.obj = document.all[name];
        this.style = document.all[name].style;
    }
}

function getWinSize(){
   var iWidth = 0, iHeight = 0;

   if (document.documentElement && document.documentElement.clientHeight){
       iWidth = parseInt(window.innerWidth,10);
       iHeight = parseInt(window.innerHeight,10);
   }
   else if (document.body){
       iWidth = parseInt(document.body.offsetWidth,10);
       iHeight = parseInt(document.body.offsetHeight,10);
   }

   return {width:iWidth, height:iHeight};
}

function resize_id(obj) {                           
    var oContent = new getObj(obj);
    var oWinSize = getWinSize();
    if ((oWinSize.height - parseInt(oContent.obj.offsetTop,10))>0)
        oContent.style.height = (oWinSize.height - parseInt(oContent.obj.offsetTop,10));
}


function tarkista() {

	if (document.lomake.nimi.value == '') {
		window.alert('Anna vielä nimesi!');
		return false;
	}
	else if (document.lomake.palaute.value.length <= 1) {
		window.alert('Anna palaute!');
		return false;
	}	
	else if (document.lomake.haluaa_yhteydenoton.checked) {

		if (document.lomake.sahkopostiosoite.value == "" && document.lomake.puhelin.value == "")
		{
			window.alert('Anna vielä sähköpostiosoitteesi tai puhelinnumerosi!');
			return false;
		}
	}	
}