Javascript _ number array sorting

<H3> function: sort numeric array size <Script language = "JavaScript">
VaR array = [54, 23,38, 4,234, 9, 11];
Document. Write ("the original array is: [" + array. tostring () + "]" + "<br/> ");

// Calculate the maximum value:
VaR max = number. negative_infinity;
Document. Write ("negative infinity:" + MAX + "; Type:" + typeof MAX + "; <br/> ");

For (VAR I = 0, Len = array. length; I <Len; I ++ ){
If (array [I]> MAX ){
Max = array [I];
}
}
Document. Write ("the maximum value in the array is:" + MAX + "; <br/> ");

// Sort:
Function sortfn (inarray ){
VaR newarray = [],
Index,
M;
Document. Write ("the original array is:" + inarray + "<br/> ");
Do {
M = number. negative_infinity;
For (VAR I = 0, Len = inarray. length; I <Len; I ++ ){
If (inarray [I]> m ){
M = inarray [I];
}
}
Document. Write ("->" + M + "<br/> ");
Newarray. Push (m );
Document. Write ("The newarray array is:" + newarray. tostring () + "<br/> ");
Index = inarray. indexof (m );
Inarray. splice (index, 1 );
Document. Write ("The inarray array is:" + inarray. tostring () + "<br/> ");
} While (inarray. length! = 0 );
Return newarray. tostring ();
}
VaR result = sortfn (array). Split (",");
Document. Write ("in ascending order:" + Result + "<br/> ");
Document. Write ("in ascending order:" + result. Reverse () + "<br/> ");

// Bubble Sorting:
VaR secarray = [45, 23, 99, 11,233, 87];
Document. Write ("bubble comparison method: original array _" + secarray + "<br/> ");
VaR Len = secarray. length,
Empty;
For (var k = 0; k <len-1; k ++ ){
For (VAR I = 0; I <len-k-1; I ++ ){
If (secarray [I]> secarray [I + 1]) {
Empty = secarray [I + 1];
Secarray [I + 1] = secarray [I];
Secarray [I] = empty
}
}
}
Document. Write ("bubble comparison method: The result is (from small to large by default) _" + secarray + "<br/> ");


</SCRIPT>