function mk7Toggle()
{
	document.getElementById("mk7div").style.visibility =
		document.getElementById("mk7div").style.visibility=='hidden' ? 'visible' : 'hidden';
	if( document.getElementById("mk7div").style.visibility=='visible' )
	{
			document.getElementById('keywords').focus();
	}
	else {
		document.getElementById("mk7langDiv").style.visibility = 'hidden';
	}
}

var shift=0;
var caps=0;
var uml = 0;
var circ = 0;
var grave = 0;
var acute = 0;
var qEng = 0;

function mk7insert(el,ins) { 
    if (el.setSelectionRange){ 
        el.value = el.value.substring(0,el.selectionStart) + ins + el.value.substring(el.selectionStart,el.selectionEnd) + el.value.substring(el.selectionEnd,el.value.length); 
    } 
    else if (document.selection && document.selection.createRange) { 
        el.focus(); 
        var range = document.selection.createRange(); 
        range.text = ins + range.text;
    } 
}


function mk7btn(btn){

element=document.getElementById('keywords');
var text_ch ="";

switch (btn){
	case "_CLEAR" : {element.value=""; break;};
	case "_ENTER" : {mk7Toggle();};
	case "_LANG"  : 
	{	
		document.getElementById("mk7langDiv").style.visibility = 
			document.getElementById("mk7langDiv").style.visibility=='hidden' ? 'visible' : 'hidden';
		qEng = !qEng;
 		break;
	};
	
	case "_MAIL" : 
	{	
		window.open('/php-scripts/mail/mail.php', 'mail', 'toolbar=no,location=0,directories=no,status=1,menubar=no,scrollbars=no,resizable=0,copyhistory=no,top=0,left=0,width=504,height=250');
 		break;
	};
	case "_SEND" : {mk7Toggle();};
	

	case "UML" : {uml = (uml==1) ? 0 : 1; break;};
	case "CIRC" : {circ = (circ==1) ? 0 : 1; break;};
	case "GRAVE" : {grave = (grave==1) ? 0 : 1; break;};
	case "ACUTE" : {acute = (acute==1) ? 0 : 1; break;};

	case "_CR" 	  : {mk7insert(element, "\r\n"); break;};
	
	case "BACK" : {var text_ch=element.value; element.value = text_ch.substr(0, (text_ch.length-1)); break;};
	
	case "CAPS" : caps= (caps==0) ? 1 : 0;
	case "SHIFT" : {shift= (shift==1) ? 0 : 1; break;};
	
	default : {
		if (uml == 1) {
			if(shift == 0) {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(228); break;
					case "e" : element.value += String.fromCharCode(235); break;
					case "i" : element.value += String.fromCharCode(239); break;
					case "o" : element.value += String.fromCharCode(246); break;
					case "u" : element.value += String.fromCharCode(252); break;
					case "y" : element.value += String.fromCharCode(255); break;
					default: element.value += btn;
				}	
			} 
			else {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(196); break;
					case "e" : element.value += String.fromCharCode(203); break;
					case "i" : element.value += String.fromCharCode(207); break;
					case "o" : element.value += String.fromCharCode(214); break;
					case "u" : element.value += String.fromCharCode(220); break;
					default: element.value += btn;
				}	
			}	
			uml = 0;
		}
		else if (circ == 1) {
			if(shift == 0) {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(226); break;
					case "e" : element.value += String.fromCharCode(234); break;
					case "i" : element.value += String.fromCharCode(238); break;
					case "o" : element.value += String.fromCharCode(244); break;
					case "u" : element.value += String.fromCharCode(251); break;
					default: element.value += btn;
				}	
			} 
			else {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(194); break;
					case "e" : element.value += String.fromCharCode(202); break;
					case "i" : element.value += String.fromCharCode(206); break;
					case "o" : element.value += String.fromCharCode(212); break;
					case "u" : element.value += String.fromCharCode(219); break;
					default: element.value += btn;
				}	
			}	
			circ = 0;
		}
		else if (grave == 1) {
			if(shift == 0) {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(224); break;
					case "e" : element.value += String.fromCharCode(232); break;
					case "i" : element.value += String.fromCharCode(236); break;
					case "o" : element.value += String.fromCharCode(242); break;
					case "u" : element.value += String.fromCharCode(249); break;
					default: element.value += btn;
				}	
			} 
			else {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(192); break;
					case "e" : element.value += String.fromCharCode(200); break;
					case "i" : element.value += String.fromCharCode(204); break;
					case "o" : element.value += String.fromCharCode(210); break;
					case "u" : element.value += String.fromCharCode(217); break;
					default: element.value += btn;
				}	
			}	
			grave = 0;
		}
		else if (acute == 1) {
			if(shift == 0) {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(225); break;
					case "e" : element.value += String.fromCharCode(233); break;
					case "i" : element.value += String.fromCharCode(237); break;
					case "o" : element.value += String.fromCharCode(243); break;
					case "u" : element.value += String.fromCharCode(250); break;
					default: element.value += btn;
				}	
			} 
			else {
				switch (btn) {
					case "a" : element.value += String.fromCharCode(193); break;
					case "e" : element.value += String.fromCharCode(201); break;
					case "i" : element.value += String.fromCharCode(205); break;
					case "o" : element.value += String.fromCharCode(211); break;
					case "u" : element.value += String.fromCharCode(218); break;
					default: element.value += btn;
				}	
			}	
			acute = 0;
		}
		else if (shift == 0) 
		{
			mk7insert(element, btn);
		}
		else if (shift == 1) {
			switch (btn) {
				case "`" : text_ch="~"; break;
				case "1" : text_ch="!"; break;
				case "2" : text_ch="@"; break;
				case "3" : text_ch="#"; break;
				case "4" : text_ch="$"; break;
				case "5" : text_ch="%"; break;
				case "6" : text_ch="^"; break;
				case "7" : text_ch="&"; break;
				case "8" : text_ch="*"; break;
				case "9" : text_ch="("; break;
				case "0" : text_ch=")"; break;
				case "-" : text_ch="_"; break;
				case "=" : text_ch="+"; break;
				case ";" : text_ch=":"; break;
				case "й" : text_ch="Й"; break;
				case "ц" : text_ch="Ц"; break;
				case "у" : text_ch="У"; break;
				case "к" : text_ch="К"; break;
				case "е" : text_ch="Е"; break;
				case "н" : text_ch="Н"; break;
				case "г" : text_ch="Г"; break;
				case "ш" : text_ch="Ш"; break;
				case "щ" : text_ch="Щ"; break;
				case "з" : text_ch="З"; break;
				case "х" : text_ch="Х"; break;
				case "ъ" : text_ch="Ъ"; break;
				case "{" : text_ch="}"; break;
				case "ф" : text_ch="Ф"; break;
				case "ы" : text_ch="Ы"; break;
				case "в" : text_ch="В"; break;
				case "а" : text_ch="А"; break;
				case "п" : text_ch="П"; break;
				case "р" : text_ch="Р"; break;
				case "о" : text_ch="О"; break;
				case "л" : text_ch="Л"; break;
				case "д" : text_ch="Д"; break;
				case "ж" : text_ch="Ж"; break;
				case "э" : text_ch="Э"; break;
				case "я" : text_ch="Я"; break;
				case "ч" : text_ch="Ч"; break;
				case "с" : text_ch="С"; break;
				case "м" : text_ch="М"; break;
				case "и" : text_ch="И"; break;
				case "т" : text_ch="Т"; break;
				case "ь" : text_ch="Ь"; break;
				case "б" : text_ch="Б"; break;
				case "ю" : text_ch="Ю"; break;
				case "," : text_ch="."; break;
				case "<" : text_ch=">"; break;
				case "'" : text_ch='"'; break;
				case "]" : text_ch="["; break;
				case "/" : text_ch="?"; break;
				case "\\" : text_ch="|"; break;	
				case "q" : text_ch="Q"; break;	
				case "w" : text_ch="W"; break;
				case "e" : text_ch="E"; break;
				case "r" : text_ch="R"; break;
				case "t" : text_ch="T"; break;
				case "y" : text_ch="Y"; break;
				case "u" : text_ch="U"; break;
				case "i" : text_ch="I"; break;
				case "o" : text_ch="O"; break;
				case "p" : text_ch="P"; break;
				case "a" : text_ch="A"; break;
				case "s" : text_ch="S"; break;
				case "d" : text_ch="D"; break;
				case "f" : text_ch="F"; break;
				case "g" : text_ch="G"; break;
				case "h" : text_ch="H"; break;
				case "j" : text_ch="J"; break;
				case "k" : text_ch="K"; break;
				case "l" : text_ch="L"; break;
				case "z" : text_ch="Z"; break;
				case "x" : text_ch="X"; break;
				case "c" : text_ch="C"; break;
				case "v" : text_ch="V"; break;
				case "b" : text_ch="B"; break;
				case "n" : text_ch="N"; break;
				case "m" : text_ch="M"; break;
				case String.fromCharCode(228): text_ch=String.fromCharCode(196); break;
				case String.fromCharCode(246): text_ch=String.fromCharCode(214); break;
				case String.fromCharCode(252): text_ch=String.fromCharCode(220); break;
				case String.fromCharCode(339): text_ch=String.fromCharCode(338); break;
				case String.fromCharCode(231): text_ch=String.fromCharCode(199); break;
				case String.fromCharCode(241): text_ch=String.fromCharCode(209); break;

				default : text_ch=btn;
			}

			mk7insert(element, text_ch);
		} 
		shift = (caps==1) ? 1 : 0;
	}
	
};

element.focus();
}