JavaScript

How to compare the tow dates from div element using j query,if the div is like
<div class="col-sm-5 text-right date-time" data-from="2015/6/16 9:20:00" data-to="2015/6/16 10:20:00"> the from and to dates are dynamic.After comparing it should display greater date based on time. If anyone can help.I searched but every where dates were first initialized and then compared.
Thanks

var ie=document.all
var dom=document.getElementById

if (messages.length>2)
i=2
else
i=0

function move1(whichlayer){
tlayer=eval(whichlayer)
if (tlayer.top>0&&tlayer.top<=5){
tlayer.top=0
setTimeout("move1(tlayer)",scrollerdelay)
setTimeout("move2(document.main.document.second)",scrollerdelay)
return
}
if (tlayer.top>=tlayer.document.height*-1){
tlayer.top-=5
setTimeout("move1(tlayer)",50)
}
else{
tlayer.top=parseInt(scrollerheight)
tlayer.document.write(messages[i])
tlayer.document.close()
if (i==messages.length-1)
i=0
else
i++
}
}

function move2(whichlayer){
tlayer2=eval(whichlayer)
if (tlayer2.top>0&&tlayer2.top<=5){
tlayer2.top=0
setTimeout("move2(tlayer2)",scrollerdelay)
setTimeout("move1(document.main.document.first)",scrollerdelay)
return
}
if (tlayer2.top>=tlayer2.document.height*-1){
tlayer2.top-=5
setTimeout("move2(tlayer2)",50)
}
else{
tlayer2.top=parseInt(scrollerheight)
tlayer2.document.write(messages[i])
tlayer2.document.close()
if (i==messages.length-1)
i=0
else
i++
}
}

function move3(whichdiv){
tdiv=eval(whichdiv)
if (parseInt(tdiv.style.top)>0&&parseInt(tdiv.style.top)<=5){
tdiv.style.top=0+"px"
setTimeout("move3(tdiv)",scrollerdelay)
setTimeout("move4(second2_obj)",scrollerdelay)
return
}
if (parseInt(tdiv.style.top)>=tdiv.offsetHeight*-1){
tdiv.style.top=parseInt(tdiv.style.top)-5+"px"
setTimeout("move3(tdiv)",50)
}
else{
tdiv.style.top=parseInt(scrollerheight)
tdiv.innerHTML=messages[i]
if (i==messages.length-1)
i=0
else
i++
}
}

function move4(whichdiv){
tdiv2=eval(whichdiv)
if (parseInt(tdiv2.style.top)>0&&parseInt(tdiv2.style.top)<=5){
tdiv2.style.top=0+"px"
setTimeout("move4(tdiv2)",scrollerdelay)
setTimeout("move3(first2_obj)",scrollerdelay)
return
}
if (parseInt(tdiv2.style.top)>=tdiv2.offsetHeight*-1){
tdiv2.style.top=parseInt(tdiv2.style.top)-5+"px"
setTimeout("move4(second2_obj)",50)
}
else{
tdiv2.style.top=parseInt(scrollerheight)
tdiv2.innerHTML=messages[i]
if (i==messages.length-1)
i=0
else
i++
}
}

function startscroll(){
if (ie||dom){
first2_obj=ie? first2 : document.getElementById("first2")
second2_obj=ie? second2 : document.getElementById("second2")
move3(first2_obj)
second2_obj.style.top=scrollerheight
second2_obj.style.visibility='visible'
}
else if (document.layers){
document.main.visibility='show'
move1(document.main.document.first)
document.main.document.second.top=parseInt(scrollerheight)+5
document.main.document.second.visibility='show'
}
}

window.onload=startscroll

</script>


<ilayer id="main" width=&{scrollerwidth}; height=&{scrollerheight}; bgColor=&{scrollerbgcolor}; background={scrollerbackground}; visibility=hide>
<layer id="first" left=0 top=1 width=&{scrollerwidth};>
<script language="JavaScript1.2">
if (document.layers)
document.write(messages[0])
</script>
</layer>
<layer id="second" left=0 top=0 width=&{scrollerwidth}; visibility=hide>
<script language="JavaScript1.2">
if (document.layers)
document.write(messages[dyndetermine=(messages.length==1)? 0 : 1])
</script>
</layer>
</ilayer>

<script language="JavaScript1.2">
if (ie||dom){
document.writeln('<div id="main2" style="position:relative;width:'+scrollerwidth+';height:'+scrollerheight+';overflow:hidden;background-color:'+scrollerbgcolor+' ;background-image:url('+scrollerbackground+')">')
document.writeln('<div style="position:absolute;width:'+scrollerwidth+';height:'+scrollerheight+';clip:rect(0 '+scrollerwidth+' '+scrollerheight+' 0);left:0px;top:0px">')
document.writeln('<div id="first2" style="position:absolute;width:'+scrollerwidth+';left:0px;top:1px;">')
document.write(messages[0])
document.writeln('</div>')
document.writeln('<div id="second2" style="position:absolute;width:'+scrollerwidth+';left:0px;top:0px;visibility:hidden">')
document.write(messages[dyndetermine=(messages.length==1)? 0 : 1])
document.writeln('</div>')
document.writeln('</div>')
document.writeln('</div>')
}
</script>

Warning 1 The 'contract' attribute is invalid - The value 'PlayZone.Services.SessionPool' is invalid according to its datatype 'serviceContractType' - The Enumeration constraint failed. E:\Projects\PlayZoneJUNE04\PlayZone\Web.config 57 48 PlayZone

<services>
      <service name="WebChat.Services.Transition">
        <endpoint address="" behaviorConfiguration="Sever.Services.TransitionAspNetAjaxBehavior"
            binding="webHttpBinding" contract="WebChat.Services.Transition" />
      </service>
      <service name="WebChat.Services.SessionPool">
        <endpoint address="" behaviorConfiguration="Sever.Services.SessionPoolAspNetAjaxBehavior"
            binding="webHttpBinding" contract="WebChat.Services.SessionPool" />
      </service>
    </services>

        private void CreateControls(ControlCollection cc)
        {
            if (RadScriptManager.GetCurrent(_contextPage) == null)
            {
                RadScriptManager rsm = new RadScriptManager();
                rsm.ID = "scriptManager";
                cc.Add(rsm);
            }
        }
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