判断是否在当前周的代码，请帮忙修正

First
<SCRIPT LANGUAGE="JavaScript">
<!--
function Date.prototype.toString(){
return this.getFullYear()+"-"+(this.getMonth()+1)+"-"+this.getDate();
}
var d = new Date();

var d1 = new Date(d-(d.getDay()-1)*86400000);

var d0 = new Date((d1/1000+6*86400)*1000);
function validation(){
if( FIELD6.value < d1 )
{
alert(“早于周一”);
return false;
}
}
//-->
</SCRIPT>

Second
<SCRIPT LANGUAGE="JavaScript">
<!--
function Date.prototype.toString(){
return this.getFullYear()+"-"+(this.getMonth()+1)+"-"+this.getDate();
}
var d = new Date();

var d1 = new Date(d-(d.getDay()-1)*86400000);

var d0 = new Date((d1/1000+6*86400)*1000);
function validation(){
if( FIELD6.value < “2008-09-04” )
{
alert(“早于周一”);
return false;
}
}
//-->
</SCRIPT>


只有第二个可以执行，可我想用动态的判断参数。第一个错在哪里呢？