function f(o){
	var code = event.keyCode
	switch (code)
	{
	case 37:
		break
	case 38:
		break
	case 39:
		break
	case 40:
		break
	default:
		if(o.value != o.value.toLowerCase()) {
		    o.value=o.value.toLowerCase();
		}
	}
}
function trim(str){
   return str.replace(/^\s*|\s*$/g,"");
}

function putMyChar(mF, mV) {mF.value+=mV;}

function backAtCursor(mF){if (document.selection){
mF.focus();
sel=document.selection.createRange();

if(sel.text.length>0){ 
sel.text='';
}else{
sel.moveStart('character',-1); 
sel.text='';
}

sel.select();
 
}else if (mF.selectionStart || mF.selectionStart == '0'){
var sP=mF.selectionStart;
var eP=mF.selectionEnd;
mF.value=mF.value.substring(0,sP-1)+mF.value.substring(eP,mF.value.length);
mF.selectionStart=sP-1;
mF.selectionEnd=sP-1;
mF.focus();
}else{
mF.value=mF.value.substr(0,(mF.value.length-1));
mF.focus();
}
}