function clearText(thefield){if(thefield.defaultValue==thefield.value);thefield.value="";}
function divHeight(){var primarySidebar=0;if(document.getElementById('primarySidebar')){primarySidebar=(document.getElementById('primarySidebar').offsetHeight);}
var mainContent=(document.getElementById('im-mainContent').offsetHeight)
var optionalSidebar=0;if(document.getElementById('optionalSidebar')){optionalSidebar=(document.getElementById('optionalSidebar').offsetHeight);}
if(primarySidebar>=mainContent){document.getElementById('im-mainContent').style.height=primarySidebar+"px";}
if(mainContent>=primarySidebar&&primarySidebar!=0){document.getElementById('primarySidebar').style.height=mainContent+"px";}
if(optionalSidebar>=mainContent){document.getElementById('im-mainContent').style.height=optionalSidebar+"px";}}