//Input mezo kiuritese.
function clearinp(obj, data) {
	if (obj.value == data) {		
  		obj.value="";
  	}
}
	
//Oszlopok magassaganak egymashoz igazitasa.
function make_column_height(id_1, id_2) {
	height_1 = document.getElementById(id_1).offsetHeight;
	height_2 = document.getElementById(id_2).offsetHeight;
	
	if (height_1 > height_2 || height_1 == height_2) {
		height_new = height_1;
	}
		
	if (height_2 > height_1) {
		height_new = height_2;
	}
	
	document.getElementById(id_1).style.height = height_new + 'px';
	document.getElementById(id_2).style.height = height_new + 'px';
}
	
//Fooldali oszlopok egymashoz igazitasa.
function mainpage_column_heights() {
	make_column_height('left_column', 'right_column');
	make_column_height('content', 'left_column');
}

//Tartalmi resz magassaganak beallitasa.
function content_height() {
	height = document.getElementById('content').offsetHeight;
	
	if (height < 350) {
		document.getElementById('content').style.height = '350px';
	}
}