function changeSearchType(type){
	
	switch(type){
		case 'simple':
		case 0:
			$('aramatab-1').className='search-tab-active';	
			$('aramatab-2').className='search-tab';
			$('aramatab-3').className='search-tab';
			
			$('zaman-arama').style.display='';
			$('gelismis-arama').style.display='none';
			$('google-arama').style.display='none';
			
			$('search-type').value=0;
			break;
			
		case 'advanced':
		case 1:
			$('aramatab-1').className='search-tab';	
			$('aramatab-2').className='search-tab-active';
			$('aramatab-3').className='search-tab';
			
			$('zaman-arama').style.display='';
			$('gelismis-arama').style.display='';
			$('google-arama').style.display='none';
			
			$('search-type').value=1;
			break;
			
		case 'google':
			$('aramatab-1').className='search-tab';	
			$('aramatab-2').className='search-tab';
			$('aramatab-3').className='search-tab-active';
			
			$('zaman-arama').style.display='none';
			$('gelismis-arama').style.display='none';
			$('google-arama').style.display='';
			break;
	}
	
}
function validateSearch(msg){ 
	var words = document.getElementById('all-kelimeler').value; 
	var columnist = document.getElementById('advanced-author').value;
	
	if((words=='')&&(columnist=='')||(words.length<3&&words!='')){
		alert(msg);
		return false;
	}
	else{
		return true;
	}
}

function formSubmit(){
	var date = document.getElementById('date').value;
	document.getElementById('searchForm').action = document.getElementById('searchForm').action+"?archiveDate="+date;
	document.getElementById('searchForm').submit();
}