1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
function submitCode()
{
document.forms["code"].submit();
var x = document.getElementById("status");
x.innerHTML = "<strong>Checking answer ...</strong>";
x = document.getElementById("check");
x.disabled = true;
x.value = "Checking Answer ...";
document.getElementById("skip").disabled = true;
}
function setSelectionRange(input, selectionStart, selectionEnd)
{
if (input.setSelectionRange)
{
input.focus();
input.setSelectionRange(selectionStart, selectionEnd);
}
else if (input.createTextRange)
{
var range = input.createTextRange();
range.collapse(true);
range.moveEnd('character', selectionEnd);
range.moveStart('character', selectionStart);
range.select();
}
}
function replaceSelection (input, replaceString)
{
if (input.setSelectionRange)
{
var selectionStart = input.selectionStart;
var selectionEnd = input.selectionEnd;
input.value = input.value.substring(0, selectionStart)+ replaceString + input.value.substring(selectionEnd);
if (selectionStart != selectionEnd)
{
setSelectionRange(input, selectionStart, selectionStart + replaceString.length);
}
else
{
setSelectionRange(input, selectionStart + replaceString.length, selectionStart + replaceString.length);
}
}
else if (document.selection)
{
var range = document.selection.createRange();
if (range.parentElement() == input)
{
var isCollapsed = range.text == '';
range.text = replaceString;
if (!isCollapsed)
{
range.moveStart('character', -replaceString.length);
range.select();
}
}
}
}
function catchTab(item,e)
{
if(navigator.userAgent.match("Gecko"))
{
c=e.which;
}
else
{
c=e.keyCode;
}
if(c==9)
{
replaceSelection(item,String.fromCharCode(9));
setTimeout("document.getElementById('"+item.id+"').focus();",0);
return false;
}
}
var lineObjOffsetTop = 2;
function addLineNumbers(id)
{
var el = document.createElement('DIV');
var ta = document.getElementById(id);
var content = document.getElementById('snippet').value;
ta.parentNode.insertBefore(el,ta);
el.appendChild(ta);
el.className='textAreaWithLines';
el.style.width = (ta.offsetWidth + 30) + 'px';
ta.style.position = 'absolute';
ta.style.left = '30px';
el.style.height = (ta.offsetHeight + 2) + 'px';
el.style.overflow='hidden';
el.style.position = 'relative';
el.style.width = (ta.offsetWidth + 30) + 'px';
var lineObj = document.createElement('DIV');
lineObj.style.position = 'absolute';
lineObj.style.top = lineObjOffsetTop + 'px';
lineObj.style.left = '0px';
lineObj.style.width = '27px';
el.insertBefore(lineObj,ta);
lineObj.style.textAlign = 'right';
lineObj.className='lineObj';
var string = '';
split_content = content.split('\n');
if(id == "answer")
{
for(var no=split_content.length+1;no<1000;no++)
{
if(string.length>0)string = string + '<br>';
string = string + no;
}
}
else
{
for(var no=1;no<=split_content.length;no++)
{
if(string.length>0)string = string + '<br>';
string = string + no;
}
}
ta.onmousedown = function() { positionLineObj(lineObj,ta); };
ta.onscroll = function() { positionLineObj(lineObj,ta); };
ta.onblur = function() { positionLineObj(lineObj,ta); };
ta.onfocus = function() { positionLineObj(lineObj,ta); };
ta.onmouseover = function() { positionLineObj(lineObj,ta); };
lineObj.innerHTML = string;
}
function positionLineObj(obj,ta)
{
obj.style.top = (ta.scrollTop * -1 + lineObjOffsetTop) + 'px';
}
|
