var dragapproved=false
var zcor,xcor,ycor

function ietruebody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function getWindowWidth() {
    var myWidth = 0;
    if (typeof (window.innerWidth) == 'number') {
        //Non-IE
        myWidth = window.innerWidth - 15;
    } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
        //IE 6+ in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
    } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
        //IE 4 compatible
        myWidth = document.body.clientWidth;
    }
    return myWidth;
}

function getWindowHeight() {
    var myHeight = 0;
    if (typeof (window.innerWidth) == 'number') {
        //Non-IE
        myHeight = window.innerHeight;
    } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
        //IE 6+ in 'standards compliant mode'
        myHeight = document.documentElement.clientHeight;
    } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
        //IE 4 compatible
        myHeight = document.body.clientHeight;
    }
    return myHeight;
}

function getScrollXY() {
    var scrOfX = 0, scrOfY = 0;
    if (typeof (window.pageYOffset) == 'number') {
        //Netscape compliant
        scrOfY = window.pageYOffset;
        scrOfX = window.pageXOffset;
    } else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
        //DOM compliant
        scrOfY = document.body.scrollTop;
        scrOfX = document.body.scrollLeft;
    } else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
        //IE6 standards compliant mode
        scrOfY = document.documentElement.scrollTop;
        scrOfX = document.documentElement.scrollLeft;
    }
    return [scrOfX, scrOfY];
}

function movescontentmain(){
if (event.button==1&&dragapproved){
zcor.style.pixelLeft=tempvar1+event.clientX-xcor
zcor.style.pixelTop=tempvar2+event.clientY-ycor
leftpos=document.all.scontentmain.style.pixelLeft-ietruebody().scrollLeft
toppos=document.all.scontentmain.style.pixelTop-ietruebody().scrollTop
return false
}
}
function dragscontentmain(){
if (!document.all)
return
if (event.srcElement.id=="scontentbar"){
dragapproved=true
zcor=scontentmain
tempvar1=zcor.style.pixelLeft
tempvar2=zcor.style.pixelTop
xcor=event.clientX
ycor=event.clientY
document.onmousemove=movescontentmain
}
}
document.onmousedown=dragscontentmain
document.onmouseup=new Function("dragapproved=false")