function iA(mF, mV) {

if (document.selection) {

var t;mF.focus();

sel=document.selection.createRange();t=sel.text.lenght;sel.text=mV;

if (mV.length==0){sel.moveStart('character',mV.length);

sel.moveEnd('character',mV.length);

}else {

sel.moveStart('character',-mV.length+t);

}sel.select();

}else if (mF.selectionStart || mF.selectionStart=='0'){

var sP=mF.selectionStart;

var eP=mF.selectionEnd;

mF.value=mF.value.substring(0,sP)+mV+mF.value.substring(eP,mF.value.length);

mF.selectionStart=sP+mV.length;

mF.selectionEnd=sP+mV.length;

mF.focus();

}else{

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();

}

}