function strstr( haystack, needle, bool ) {  
	// Finds first occurrence of a string within another    
	//   
	// version: 810.1317  
	// discuss at: http://kevin.vanzonneveld.net/techblog/article/javascript_equivalent_for_phps_strstr  

	// +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)  
	// +   bugfixed by: Onno Marsman  
	// *     example 1: strstr('Kevin van Zonneveld', 'van');  
	// *     returns 1: 'van Zonneveld'  
	// *     example 2: strstr('Kevin van Zonneveld', 'van', true);  
	// *     returns 2: 'Kevin '  
	var pos = 0;  

		haystack += '';  
		pos = haystack.indexOf( needle );  
		if( pos == -1 ){  
			return false;  
		} else{  
			if( bool ){  
				return haystack.substr( 0, pos );  
			} else{  
				return haystack.slice( pos );  
		}  
	}  
}

pos_start = 0;
pos_current = 1;
function scrolldroid() {

if(strstr(navigator.appVersion,'Safari')) {

pos_current = window.pageYOffset;

}else{

pos_current = document.documentElement.scrollTop;

}

document.getElementById("luke_en_vagyok_az_apad").style.marginTop = pos_start+pos_current+'px';

}



function ellenor() {

	if(document.getElementById('reg').checked) {
	
		document.getElementById('kuld').disabled = false;
	
	}else{
	
		document.getElementById('kuld').disabled = true;
	
	}

}

function masol(honnan,hova) {

document.getElementById(hova).value = document.getElementById(honnan).value;

}